TY - THES A1 - Köhler, Wolfgang T1 - Challenges of efficient and compliant data processing T1 - Herausforderungen einer effizienten und gesetzeskonformen Datenverarbeitung BT - assuring legal access to data BT - Sicherstellung des rechtmäßigen Zugangs zu Daten N2 - Die fortschreitende Digitalisierung verändert die Gesellschaft und hat weitreichende Auswirkungen auf Menschen und Unternehmen. Grundlegend für diese Veränderungen sind die neuen technologischen Möglichkeiten, Daten in immer größerem Umfang und für vielfältige neue Zwecke zu verarbeiten. Von besonderer Bedeutung ist dabei die Verfügbarkeit großer und qualitativ hochwertiger Datensätze, insbesondere auf Basis personenbezogener Daten. Sie werden entweder zur Verbesserung der Produktivität, Qualität und Individualität von Produkten und Dienstleistungen oder gar zur Entwicklung neuartiger Dienstleistungen verwendet. Heute wird das Nutzerverhalten, trotz weltweit steigender gesetzlicher Anforderungen an den Schutz personenbezogener Daten, aktiver und umfassender verfolgt als je zuvor. Dies wirft vermehrt ethische, moralische und gesellschaftliche Fragen auf, die nicht zuletzt durch populäre Fälle des Datenmissbrauchs in den Vordergrund der politischen Debatte gerückt sind. Angesichts dieses Diskurses und der gesetzlichen Anforderungen muss heutiges Datenmanagement drei Bedingungen erfüllen: Erstens die Legalität bzw. Gesetzeskonformität der Nutzung, zweitens die ethische Legitimität. Drittens sollte die Datennutzung aus betriebswirtschaftlicher Sicht wertschöpfend sein. Im Rahmen dieser Bedingungen verfolgt die vorliegende kumulative Dissertation vier Forschungsziele mit dem Fokus, ein besseres Verständnis (1) der Herausforderungen bei der Umsetzung von Gesetzen zum Schutz von Privatsphäre, (2) der Faktoren, die die Bereitschaft der Kunden zur Weitergabe persönlicher Daten beeinflussen, (3) der Rolle des Datenschutzes für das digitale Unternehmertum und (4) der interdisziplinären wissenschaftlichen Bedeutung, deren Entwicklung und Zusammenhänge zu erlangen. N2 - Advancing digitalization is changing society and has far-reaching effects on people and companies. Fundamental to these changes are the new technological possibilities for processing data on an ever-increasing scale and for various purposes. The availability of large and high-quality data sets, especially those based on personal data, is crucial. They are used either to improve the productivity, quality, and individuality of products and services or to develop new types of services. Today, user behavior is tracked more actively and comprehensively than ever despite increasing legal requirements for protecting personal data worldwide. That increasingly raises ethical, moral, and social questions, which have moved to the forefront of the political debate, not least due to popular cases of data misuse. Given this discourse and the legal requirements, today's data management must fulfill three conditions: Legality or legal conformity of use and ethical legitimacy. Thirdly, the use of data should add value from a business perspective. Within the framework of these conditions, this cumulative dissertation pursues four research objectives with a focus on gaining a better understanding of (1) the challenges of implementing privacy laws, (2) the factors that influence customers' willingness to share personal data, (3) the role of data protection for digital entrepreneurship, and (4) the interdisciplinary scientific significance, its development, and its interrelationships. KW - General Data Protection Regulation (GDPR) KW - data privacy KW - privacy management KW - Datenschutz-Grundverordnung (DSGVO) KW - Datenschutz KW - Datenschutzmanagement KW - Datenmonetarisierung KW - digitale Produktentwicklung KW - data monetization KW - digital product development Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-627843 ER - TY - CHAP A1 - Balderjahn, Ingo A1 - Hedergott, Doreen A1 - Appenfeller, Dennis A1 - Peyer, Mathias ED - Baier, Daniel ED - Brusch, Michael T1 - Choice-Based Conjointanalyse T2 - Conjointanalyse N2 - Die auswahlbasierte oder auch Choice-Based Conjointanalyse (CBC) ist die derzeit wohl beliebteste Variante der Conjointanalyse. Gründe dafür bestehen einerseits in der leichten Verfügbarkeit benutzerfreundlicher Software (z.B. R, Sawtooth Software), andererseits weist das Verfahren aufgrund seiner Sonderstellung auch aus methodischer sowie praktischer Sicht Stärken auf. So werden bei einer CBC im Gegensatz zur bewertungsbasierten Conjointanalyse keine Präferenzurteile, sondern diskrete Entscheidungen der Auskunftspersonen erhoben und ausgewertet. Bei der CBC handelt es sich also genau genommen um eine Discrete Choice Analyse (DCA), die auf ein conjointanalytisches Erhebungsdesign angewandt wird. Beide Bezeichnungen werden nach wie vor verwendet, die Methodik wird in diesem Kapitel grundlegend und anhand eines Anwendungsbeispiels diskutiert. Y1 - 2021 SN - 978-3-662-63363-2 SN - 978-3-662-63364-9 U6 - https://doi.org/10.1007/978-3-662-63364-9_8 SP - 185 EP - 203 PB - Springer Gabler CY - Berlin ; Heidelberg ET - 2., überarbeitete und erweiterte ER - TY - JOUR A1 - Balderjahn, Ingo A1 - Lee, Michael S. W. A1 - Seegebarth, Barbara A1 - Peyer, Mathias T1 - A sustainable pathway to consumer wellbeing BT - the role of anticonsumption and consumer empowerment JF - The Journal of consumer affairs N2 - This study investigates the effect of different anticonsumption constructs on consumer wellbeing. The study assumes that people will only lower their level of consumption if doing so does not also lower personal wellbeing. More precisely, this research investigates how specific subtypes of sustainable anticonsumption (e.g., voluntary simplicity, collaborative consumption, and debt-free living) relate to different states of consumer's wellbeing (e.g., financial, psychosocial, and subjective wellbeing). This work also examines whether consumer empowerment can improve personal wellbeing and strengthen the anticonsumption wellbeing relationship. The results show that voluntarily foregoing consumption does not reduce wellbeing and consumer empowerment plays a significant role in supporting sustainable pathways to consumer wellbeing. This study reasons that empowerment improves consumer sovereignty, but may be detrimental for consumers heavily concerned about debt-free living. The present investigation concludes by proposing implications for public and consumer policymakers wishing to promote appropriate sustainable (anticonsumption) pathways to consumer wellbeing. Y1 - 2019 U6 - https://doi.org/10.1111/joca.12278 SN - 0022-0078 SN - 1745-6606 VL - 54 IS - 2 SP - 456 EP - 488 PB - Wiley CY - Malden, Mass. ER - TY - JOUR A1 - AbuJarour, Safa'a A1 - Ajjan, Haya A1 - Fedorowicz, Jane A1 - Köster, Antonia T1 - ICT support for refugees and undocumented immigrants JF - Communications of the Association for Information Systems : CAIS N2 - Immigrant integration has become a primary political concern for leaders in Germany and the United States. The information systems (IS) community has begun to research how information and communications technologies can assist immigrants and refugees, such as by examining how countries can facilitate social-inclusion processes. Migrants face the challenge of joining closed communities that cannot integrate or fear doing so. We conducted a panel discussion at the 2019 Americas Conference on Information Systems (AMCIS) in Cancun, Mexico, to introduce multiple viewpoints on immigration. In particular, the panel discussed how technology can both support and prevent immigrants from succeeding in their quest. We conducted the panel to stimulate a thoughtful and dynamic discussion on best practices and recommendations to enhance the discipline's impact on alleviating the challenges that occur for immigrants in their host countries. In this panel report, we introduce the topic of using ICT to help immigrants integrate and identify differences between North/Central America and Europe. We also discuss how immigrants (particularly refugees) use ICT to connect with others, feel that they belong, and maintain their identity. We also uncover the dark and bright sides of how governments use ICT to deter illegal immigration. Finally, we present recommendations for researchers and practitioners on how to best use ICT to assist with immigration. KW - refugees KW - immigration KW - social inclusion KW - deterrence KW - ICT KW - bright side KW - dark side Y1 - 2020 U6 - https://doi.org/10.17705/1CAIS.04840 SN - 1529-3181 VL - 48 SP - 456 EP - 475 PB - Association for Information Systems CY - New York, NY ER - TY - JOUR A1 - AbuJarour, Safa'a A1 - Ajjan, Haya A1 - Fedorowicz, Jane A1 - Owens, Dawn T1 - How working from home during COVID-19 affects academic productivity JF - Communications of the Association for Information Systems : CAIS N2 - The coronavirus disease of 2019 (COVID-19) pandemic has forced most academics to work from home. This sudden venue change can affect academics' productivity and exacerbate the challenges that confront universities as they face an uncertain future. In this paper, we identify factors that influence academics' productivity while working from home during the mandate to self-isolate. From analyzing results from a global survey we conducted, we found that both personal and technology-related factors affect an individual's attitude toward working from home and productivity. Our results should prove valuable to university administrators to better address the work-life challenges that academics face. KW - work from home KW - academic KW - COVID-19 KW - productivity KW - WFH KW - technology KW - usefulness KW - family-work conflict Y1 - 2021 U6 - https://doi.org/10.17705/1CAIS.04808 SN - 1529-3181 VL - 48 SP - 55 EP - 64 PB - Association for Information Systems CY - New York, NY ER - TY - CHAP A1 - Abramova, Olga A1 - Gladkaya, Margarita A1 - Krasnova, Hanna T1 - An unusual encounter with oneself BT - exploring the impact of self-view on online meeting outcomes T2 - ICIS 2021: IS and the future of work N2 - Helping overcome distance, the use of videoconferencing tools has surged during the pandemic. To shed light on the consequences of videoconferencing at work, this study takes a granular look at the implications of the self-view feature for meeting outcomes. Building on self-awareness research and self-regulation theory, we argue that by heightening the state of self-awareness, self-view engagement depletes participants’ mental resources and thereby can undermine online meeting outcomes. Evaluation of our theoretical model on a sample of 179 employees reveals a nuanced picture. Self-view engagement while speaking and while listening is positively associated with self-awareness, which, in turn, is negatively associated with satisfaction with meeting process, perceived productivity, and meeting enjoyment. The criticality of the communication role is put forward: looking at self while listening to other attendees has a negative direct and indirect effect on meeting outcomes; however, looking at self while speaking produces equivocal effects. Y1 - 2021 UR - https://aisel.aisnet.org/icis2021/is_future_work/is_future_work/16 PB - AIS Electronic Library (AISeL) CY - [Erscheinungsort nicht ermittelbar] ER - TY - JOUR A1 - Kalkuhl, Matthias A1 - Steckel, Jan Christoph A1 - Edenhofer, Ottmar T1 - All or nothing BT - climate policy when assets can become stranded JF - Journal of environmental economics and management N2 - This paper develops a new perspective on stranded assets in climate policy using a partial equilibrium model of the energy sector. Political-economy related aspects are considered in the government's objective function. Lobbying power of firms or fiscal considerations by the government lead to time inconsistency: The government will deviate from a previously announced carbon tax which creates stranded assets. Under rational expectations, we show that a time-consistent policy outcome exists with either a zero carbon tax or a prohibitive carbon tax that leads to zero fossil investments - an "all-or-nothing" policy. Although stranded assets are crucial to such a bipolar outcome, they disappear again under time-consistent policy. Which of the two outcomes (all or nothing) prevails depends on the lobbying power of owners of fixed factors (land and fossil resources) but not on fiscal revenue considerations or on the lobbying power of renewable or fossil energy firms. KW - Climate policy KW - Optimal control KW - Political economy KW - Public finance KW - Credible policy KW - Time inconsistency Y1 - 2020 U6 - https://doi.org/10.1016/j.jeem.2019.01.012 SN - 0095-0696 SN - 1096-0449 VL - 100 PB - Elsevier CY - San Diego ER - TY - RPRT A1 - Margaryan, Shushanik A1 - Saniter, Nils A1 - Schumann, Mathias A1 - Siedler, Thomas T1 - Do internships pay off? BT - the effects of student internships on earnings T2 - Journal of human resources N2 - We study the causal effect of student internship experience in firms on earnings later in life. We use mandatory firm internships at German universities as an instrument for doing a firm internship while attending university. Employing longitudinal data from graduate surveys, we find positive and significant earnings returns of about 6 percent in both ordinary least squares (OLS) and instrumental variables (IV) regressions. The positive returns are particularly pronounced for individuals and areas of study that are characterized by a weak labor market orientation. The empirical findings show that graduates who completed a firm internship face a lower risk of unemployment during the first year of their careers, suggesting a smoother transition to the labor market. Y1 - 2022 U6 - https://doi.org/10.3368/jhr.57.4.0418-9460R2 SN - 0022-166X SN - 1548-8004 VL - 57 IS - 4 SP - 1242 EP - 1275 PB - University of Wisconsin Press CY - Madison ER - TY - JOUR A1 - Baert, By Stijn A1 - Neyt, Brecht A1 - Siedler, Thomas A1 - Tobback, Ilse A1 - Verhaest, Dieter T1 - Student internships and employment opportunities after graduation BT - a field experiment JF - Economics of education review N2 - Internships during tertiary education have become substantially more common over the past decades in many industrialised countries. This study examines the impact of a voluntary intra-curricular internship experience during university studies on the probability of being invited to a job interview. To estimate a causal relationship, we conducted a randomised field experiment in which we sent 1248 fictitious, but realistic, resumes to real job openings. We find that applicants with internship experience have, on average, a 12.6% higher probability of being invited to a job interview. KW - internship KW - hiring KW - field experiment KW - human capital KW - signalling Y1 - 2021 U6 - https://doi.org/10.1016/j.econedurev.2021.102141 SN - 0272-7757 VL - 83 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Marcus, Jan A1 - Siedler, Thomas A1 - Ziebarth, Nicolas R. T1 - The long-run effects of sports club vouchers for primary school children JF - American economic journal: economic policy N2 - Childhood obesity is one of the most serious public health challenges of the twenty-first century. While small-scale experiments change behaviors among adults in the short run, we know little about the effectiveness of large-scale policies or the longer-run impacts. To nudge primary school children into a long-term habit of exercising, the German state of Saxony distributed sports club membership vouchers among all 33,000 third graders in 2009. In 2018, we carried out a register-based survey to evaluate the policy. Even after a decade, awareness of the voucher program was significantly higher in the treatment group. We also find that youth received and redeemed the vouchers. However, we do not find significant short- or long-term effects on sports club membership, physical activity, overweightness, or motor skills. Apparently, membership vouchers for children are not a strong enough policy tool to overcome barriers to exercise regularly. Y1 - 2022 U6 - https://doi.org/10.1257/pol.20200431 SN - 1945-7731 SN - 1945-774X VL - 14 IS - 3 SP - 128 EP - 165 PB - American Economic Association CY - Nashville ER - TY - JOUR A1 - Felfe, Christina A1 - Kocher, Martin G. A1 - Rainer, Helmut A1 - Saurer, Judith A1 - Siedler, Thomas T1 - More opportunity, more cooperation? BT - the behavioral effects of birthright citizenship on immigrant youth JF - Journal of public economics N2 - Inequality of opportunity, particularly when overlaid with socioeconomic, ethnic, or cultural differences, may limit the scope of cooperation between individuals. A central question, then, is how to overcome such obstacles to cooperation. We study this question in the context of Germany, by asking whether the propensity of immigrant youth to cooperate with native peers was affected by a major integration reform: the introduction of birthright citizenship. Our unique setup exploits data from a large-scale lab-in-the-field experiment in a quasi-experimental evaluation framework. We find that the policy caused male, but not female, immigrants to significantly increase their cooperativeness toward natives. We show that the increase in out-group cooperation among immigrant boys is an outcome of more trust rather than a reflection of stronger other-regarding preferences towards natives. In exploring factors that may explain these behavioral effects, we present evidence that the policy also led to a near-closure of the educational achievement gap between young immigrant men and their native peers. Our results high -light that, through integration interventions, governments can modify prosocial behavior in a way that generates higher levels of efficiency in the interaction between social groups. KW - in-group favoritism KW - out-group discrimination KW - birthright citizenship KW - lab-in-the-field experiment KW - natural experiment Y1 - 2021 U6 - https://doi.org/10.1016/j.jpubeco.2021.104448 SN - 0047-2727 SN - 1879-2316 VL - 200 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Fleischer, Julia A1 - Buzogány, Aron T1 - Unboxing international public administrations BT - the politics of structural change in the UN system (1998–2019) JF - The American review of public administration N2 - Recent debates in international relations increasingly focus on bureaucratic apparatuses of international organizations and highlight their role, influence, and autonomy in global public policy. In this contribution we follow the recent call made by Moloney and Rosenbloom in this journal to make use of “public administrative theory and empirically based knowledge in analyzing the behavior of international and regional organizations” and offer a systematic analysis of the inner structures of these administrative bodies. Changes in these structures can reflect both the (re-)assignment of responsibilities, competencies, and expertise, but also the (re)allocation of resources, staff, and corresponding signalling of priorities. Based on organizational charts, we study structural changes within 46 international bureaucracies in the UN system. Tracing formal changes to all internal units over two decades, this contribution provides the first longitudinal assessment of structural change at the international level. We demonstrate that the inner structures of international bureaucracies in the UN system became more fragmented over time but also experienced considerable volatility with periods of structural growth and retrenchment. The analysis also suggests that IO's political features yield stronger explanatory power for explaining these structural changes than bureaucratic determinants. We conclude that the politics of structural change in international bureaucracies is a missing piece in the current debate on international public administrations that complements existing research perspectives by reiterating the importance of the political context of international bureaucracies as actors in global governance. KW - global public policy KW - international public administration KW - structural change Y1 - 2023 U6 - https://doi.org/10.1177/02750740221136488 SN - 0275-0740 SN - 1552-3357 VL - 53 IS - 1 SP - 23 EP - 35 PB - Sage CY - Thousand Oaks, Calif. ER - TY - JOUR A1 - Bäuml, Matthias A1 - Marcus, Jan A1 - Siedler, Thomas T1 - Health effects of a ban on late-night alcohol sales JF - Health economics N2 - This paper studies the impact of a ban on late-night off-premise alcohol sales between 10 p.m. and 5 a.m. in Germany. We use three large administrative data sets: (i) German diagnosis related groups-Statistik, (ii) data from a large social health insurance, and (iii) Road Traffic Accident Statistics. Applying difference-in-differences and synthetic-control-group methods, we find that the ban had no effects on alcohol-related road casualties, but significantly reduced alcohol-related hospitalizations (doctor visits) among young people by around 9 (18) percent. The decrease is driven by fewer hospitalizations due to acute alcohol intoxication during the night—when the ban is in place—but not during the day. KW - alcohol control policies KW - binge drinking KW - difference-in-difference KW - road casualties KW - sales restriction KW - synthetic control Y1 - 2022 U6 - https://doi.org/10.1002/hec.4610 SN - 1099-1050 SN - 1057-9230 VL - 32 IS - 1 SP - 65 EP - 89 PB - Wiley CY - New York, NY ER - TY - JOUR A1 - Singhal, Puja A1 - Pahle, Michael A1 - Kalkuhl, Matthias A1 - Sommer, Stephan A1 - Levesque, Antoine A1 - Berneiser, Jessica T1 - Beyond good faith BT - why evidence-based policy is necessary to decarbonize buildings cost-effectively JF - SSRN eLibrary / Social Science Research Network N2 - The ambitious climate targets set by industrialized nations worldwide cannot be met without decarbonizing the building stock. Using Germany as a case study, this paper takes stock of the extensive set of energy efficiency policies that are already in place and clarifies that they have been designed “in good faith” but lack in overall effectiveness as well as cost-efficiency in achieving these climate targets. We map out the market failures and behavioural considerations that are potential reasons for why realized energy savings fall below expectations and why the household adoption of energy-efficient and low-carbon technologies has remained low. We highlight the pressing need for data and modern empirical research to develop targeted and cost-effective policies seeking to correct these market failures. To this end, we identify some key research questions and identify gaps in the data required for evidence-based policy. KW - energy efficiency KW - decarbonization KW - housing sector KW - heat demand KW - evidence-based policy Y1 - 2021 U6 - https://doi.org/10.2139/ssrn.3947800 SN - 1556-5068 PB - SSRN - Elsevier CY - Rochester, NY ER - TY - RPRT A1 - Kellner, Maximilian A1 - Amberg, Maximilian A1 - Bergmann, Tobias A1 - Roolfs, Christina A1 - Kalkuhl, Matthias T1 - Entlastungspakete für Energiepreisanstiege BT - Auswirkungen und Nachbesserungsbedarf Y1 - 2022 UR - https://www.mcc-berlin.net/fileadmin/user_upload/Kalkuhl/2022_MCC_Entlastungspakete_fuer_Energiepreisanstiege_.pdf U6 - https://doi.org/10.5281/zenodo.6617130 PB - Mercator Research Institute on Global Commons and Climate Change (MCC) gGmbH CY - Berlin ER - TY - RPRT A1 - Steckel, Jan Christoph A1 - Missbach, Leonard A1 - Ohlendorf, Nils A1 - Feindt, Simon A1 - Kalkuhl, Matthias T1 - Effects of the energy price crisis on European households BT - socio-political challenges and policy options Y1 - 2022 UR - https://www.mcc-berlin.net/fileadmin/data/C18_MCC_Publications/2022_MCC_Effects_of_the_energy_price_crisis_on_European_households.pdf PB - Mercator Research Institute on Global Commons and Climate Change (MCC) gGmbH CY - Berlin ER - TY - RPRT A1 - Kalkuhl, Matthias A1 - Flachsland, Christian A1 - Knopf, Brigitte A1 - Amberg, Maximilian A1 - Bergmann, Tobias A1 - Kellner, Maximilian A1 - Stüber, Sophia A1 - Haywood, Luke A1 - Roolfs, Christina A1 - Edenhofer, Ottmar T1 - Auswirkungen der Energiepreiskrise auf Haushalte in Deutschland BT - sozialpolitische Herausforderungen und Handlungsoptionen Y1 - 2022 UR - https://www.mcc-berlin.net/fileadmin/data/C18_MCC_Publications/2022_MCC_Auswirkungen_der_Energiepreiskrise_auf_Haushalte.pdf PB - Mercator Research Institute on Global Commons and Climate Change (MCC) gGmbH CY - Berlin ER - TY - RPRT A1 - Kalkuhl, Matthias A1 - Amberg, Maximilian A1 - Bergmann, Tobias A1 - Knopf, Brigitte A1 - Edenhofer, Ottmar T1 - Gaspreisdeckel, Mehrwertsteuersenkung, Energiepauschale BT - wie kann die Bevölkerung zielgenau und schnell entlastet werden? Y1 - 2022 UR - https://www.mcc-berlin.net/fileadmin/data/C18_MCC_Publications/2022_MCC_Gaspreise_und_Entlastungsma%C3%9Fnahmen.pdf PB - Mercator Research Institute on Global Commons and Climate Change (MCC) gGmbH CY - Berlin ER - TY - JOUR A1 - Gruner, Friedemann A1 - Fuß, Sabine A1 - Kalkuhl, Matthias A1 - Minx, Jan C. A1 - Strefler, Jessica A1 - Merfort, Anne T1 - Wie CO2-Entnahmen helfen können, die Klimaziele zu erreichen JF - Klima und Recht Y1 - 2022 UR - https://beck-online.beck.de/?typ=reference&y=300&z=KLIMR&b=2022&s=18&n=1 SN - 2750-0551 VL - 1 IS - 1 SP - 18 EP - 21 PB - C.H. Beck CY - München ER - TY - JOUR A1 - Sedova, Barbora A1 - Kalkuhl, Matthias A1 - Mendelsohn, Robert T1 - Distributional impacts of weather and climate in rural India JF - Economics of disasters and climate change N2 - Climate-related costs and benefits may not be evenly distributed across the population. We study distributional implications of seasonal weather and climate on within-country inequality in rural India. Utilizing a first difference approach, we find that the poor are more sensitive to weather variations than the non-poor. The poor respond more strongly to (seasonal) temperature changes: negatively in the (warm) spring season, more positively in the (cold) rabi season. Less precipitation is harmful to the poor in the monsoon kharif season and beneficial in the winter and spring seasons. We show that adverse weather aggravates inequality by reducing consumption of the poor farming households. Future global warming predicted under RCP8.5 is likely to exacerbate these effects, reducing consumption of poor farming households by one third until the year 2100. We also find inequality in consumption across seasons with higher consumption during the harvest and lower consumption during the sowing seasons. KW - climate change KW - weather KW - inequality KW - household analysis KW - India KW - econometrics Y1 - 2019 U6 - https://doi.org/10.1007/s41885-019-00051-1 SN - 2511-1280 SN - 2511-1299 VL - 4 IS - 1 SP - 5 EP - 44 PB - Springer CY - Cham ER - TY - JOUR A1 - Edenhofer, Ottmar A1 - Kalkuhl, Matthias A1 - Roolfs, Christina T1 - Carbon pricing and revenue recycling BT - an overview of vertical and horizontal equity effects for Germany JF - CESifo forum Y1 - 2021 UR - https://www.cesifo.org/DocDL/CESifo-Forum-2021-5-edenhofer-kalkuhl-roolfs-carbon-pricing-september.pdf SN - 2190-717X SN - 1615-245X VL - 22 IS - 5 SP - 10 EP - 14 PB - Ifo CY - Munich ER - TY - RPRT A1 - Kalkuhl, Matthias A1 - Flachsland, Christian A1 - Knopf, Brigitte A1 - Amberg, Maximilian A1 - Bergmann, Tobias A1 - Kellner, Maximilian A1 - Stüber, Sophia A1 - Haywood, Luke A1 - Roolfs, Christina A1 - Edenhofer, Ottmar T1 - Effects of the energy price crisis on households in Germany BT - socio-political challenges and policy options Y1 - 2022 UR - https://www.mcc-berlin.net/fileadmin/data/C18_MCC_Publications/2022_MCC_Effects_of_the_energy_price_crisis_on_households.pdf PB - Mercator Research Institute on Global Commons and Climate Change (MCC) gGmbH CY - Berlin ER - TY - JOUR A1 - Baldenius, Till A1 - Bernstein, Tobias A1 - Kalkuhl, Matthias A1 - von Kleist-Retzow, Maximilian A1 - Koch, Nicolas T1 - Ordnungsrecht oder Preisinstrumente? BT - zur Verteilungswirkung von Klimaschutzmaßnahmen im Verkehr JF - Ifo-Schnelldienst Y1 - 2021 UR - https://www.ifo.de/DocDL/sd-2021-06-loeschel-etal-klimapolitik-verteilungswirkungen.pdf#page=4 SN - 0018-974X SN - 2700-8371 SN - 2199-4455 VL - 74 IS - 6 SP - 6 EP - 10 PB - Institut für Wirtschaftsforschung CY - München ER - TY - JOUR A1 - Edenhofer, Ottmar A1 - Kalkuhl, Matthias A1 - Requate, Tilman A1 - Steckel, Jan Christoph T1 - How assets get stranded BT - the impact of climate policy on capital and fossil fuel owners : introduction to the JEEM special section on climate policy and political economy JF - Journal of environmental economics and management N2 - Internalizing external costs of carbon is a fundamental goal of climate policy. Since the seminal work of Arthur Pigou in 1920, economic theory has analyzed the efficiency gains arising from various instruments that internalize externalities and lead to Pareto-improvements. It is widely recognized in environmental economics that a carbon price would effectively reflect the scarcity of the atmospheric disposal space for carbon depending on the temperature target that is to be achieved. The question of how to organize the transition process, i.e. moving from inefficient to efficient allocations, and implementing the necessary policies, has gained increasing attention in recent years. Arguably, the transition process is tightly interwoven with political processes that include complex interactions between societal stakeholders, such as households and firms, on the one hand, and political decision makers, on the other. Accordingly, understanding political-economy aspects of the transition process, including distributional outcomes, is becoming increasingly relevant. While a growing literature discusses the distributional implications of climate policy on households, it is less well understood how asset owners might be affected by climate policy and how these potential impacts would interact with the transition process. This Special Section focuses on public policy challenges related to this transition problem, with special emphasis on asset owners. A core theme is the special role of stranded assets, i.e. a devaluation of capital stocks or financial assets either by introducing a stringent carbon price or by omitting a pre-announced policy of this kind. Y1 - 2020 U6 - https://doi.org/10.1016/j.jeem.2020.102300 SN - 0095-0696 SN - 1096-0449 VL - 100 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Kalkuhl, Matthias A1 - Wenz, Leonie T1 - The impact of climate conditions on economic production BT - evidence from a global panel of regions JF - Journal of Environmental Economics and Management N2 - We present a novel data set of subnational economic output, Gross Regional Product (GRP), for more than 1500 regions in 77 countries that allows us to empirically estimate historic climate impacts at different time scales. Employing annual panel models, long-difference regressions and cross-sectional regressions, we identify effects on productivity levels and productivity growth. We do not find evidence for permanent growth rate impacts but we find robust evidence that temperature affects productivity levels considerably. An increase in global mean surface temperature by about 3.5°C until the end of the century would reduce global output by 7–14% in 2100, with even higher damages in tropical and poor regions. Updating the DICE damage function with our estimates suggests that the social cost of carbon from temperature-induced productivity losses is on the order of 73–142$/tCO2 in 2020, rising to 92–181$/tCO2 in 2030. These numbers exclude non-market damages and damages from extreme weather events or sea-level rise. KW - climate change KW - climate damages KW - climate impacts KW - growth regression KW - global warming KW - panel regression KW - cross-sectional regression KW - damage KW - function KW - social costs of carbon Y1 - 2020 U6 - https://doi.org/10.1016/j.jeem.2020.102360 SN - 0095-0696 SN - 1096-0449 VL - 103 PB - Elsevier CY - San Diego ER - TY - JOUR A1 - Edenhofer, Ottmar A1 - Kalkuhl, Matthias A1 - Ockenfels, Axel T1 - Das Klimaschutzprogramm der Bundesregierung BT - eine Wende der deutschen Klimapolitik? JF - Perspektiven der Wirtschaftspolitik N2 - Das Klimaschutzgesetz hat einen Paradigmenwechsel eingeleitet: den Einstieg in eine CO2-Bepreisung als künftiges Leitinstrument der Klimapolitik. Auf den ersten Blick ist der CO2-Preis unter einer Fülle von Fördermaßnahmen und ordnungsrechtlichen Regelungen verschüttet, deren Wirksamkeit und Kosten höchst unsicher sind. Der CO2-Preis ist aber so angelegt, dass er langfristig das dominante Instrument einer europäisch harmonisierten Klimapolitik werden kann. Der angedeutete Paradigmenwechsel der deutschen Klimapolitik öffnet damit die Tür, die europäische und internationale Kooperation zu stärken. Dazu ist es aber notwendig, neben der europäischen auch die globale Klimapolitik neu auszurichten. Auch dort sollten sich die Verhandlungen statt auf nationale Mengenziele auf CO2-Preise konzentrieren. Die erforderliche Kooperation wird möglich, wenn die Regierungen Transferzahlungen strategisch und reziprok nutzen. So könnte die Effektivität der Klimapolitik erhöht werden und es ließen sich die entstehenden Verteilungskonflikte entschärfen. KW - Klimaschutzgesetz KW - CO2-Preis KW - Emissionshandel KW - internationale Kooperation KW - Klimawandel KW - Klimapolitik KW - Deutschland KW - EU Y1 - 2020 U6 - https://doi.org/10.1515/pwp-2020-0001 SN - 1465-6493 SN - 1468-2516 VL - 21 IS - 1 SP - 4 EP - 18 PB - De Gruyter CY - Berlin ER - TY - JOUR A1 - Sureth, Michael A1 - Kalkuhl, Matthias A1 - Edenhofer, Ottmar A1 - Rockström, Johan T1 - A welfare economic approach to planetary boundaries JF - Jahrbücher für Nationalökonomie und Statistik N2 - The crises of both the climate and the biosphere are manifestations of the imbalance between human extractive, and polluting activities and the Earth’s regenerative capacity. Planetary boundaries define limits for biophysical systems and processes that regulate the stability and life support capacity of the Earth system, and thereby also define a safe operating space for humanity on Earth. Budgets associated to planetary boundaries can be understood as global commons: common pool resources that can be utilized within finite limits. Despite the analytical interpretation of planetary boundaries as global commons, the planetary boundaries framework is missing a thorough integration into economic theory. We aim to bridge the gap between welfare economic theory and planetary boundaries as derived in the natural sciences by presenting a unified theory of cost-benefit and cost-effectiveness analysis. Our pragmatic approach aims to overcome shortcomings of the practical applications of CEA and CBA to environmental problems of a planetary scale. To do so, we develop a model framework and explore decision paradigms that give guidance to setting limits on human activities. This conceptual framework is then applied to planetary boundaries. We conclude by using the realized insights to derive a research agenda that builds on the understanding of planetary boundaries as global commons. KW - cost-benefit analysis KW - cost-effectiveness analysis KW - global commons KW - planetary boundaries KW - precautionary principle KW - shadow price KW - uncertainty KW - welfare economics Y1 - 2023 U6 - https://doi.org/10.1515/jbnst-2022-0022 SN - 0021-4027 SN - 2366-049X VL - 243 IS - 5 SP - 477 EP - 542 PB - De Gruyter Oldenbourg CY - Berlin ER - TY - JOUR A1 - Diluiso, Francesca A1 - Walk, Paula A1 - Manych, Niccolo A1 - Cerutti, Nicola A1 - Chipiga, Vladislav A1 - Workman, Annabelle A1 - Ayas, Ceren A1 - Cui, Ryna Yiyun A1 - Cui, Diyang A1 - Song, Kaihui A1 - Banisch, Lucy A. A1 - Moretti, Nikolaj A1 - Callaghan, Max W. A1 - Clarke, Leon A1 - Creutzig, Felix A1 - Hilaire, Jerome A1 - Jotzo, Frank A1 - Kalkuhl, Matthias A1 - Lamb, William F. A1 - Löschel, Andreas A1 - Müller-Hansen, Finn A1 - Nemet, Gregory F. A1 - Oei, Pao-Yu A1 - Sovacool, Benjamin K. A1 - Steckel, Jan Christoph A1 - Thomas, Sebastian A1 - Wiseman, John A1 - Minx, Jan C. T1 - Coal transitions - part 1 BT - a systematic map and review of case study learnings from regional, national, and local coal phase-out experiences JF - Environmental research letters N2 - A rapid coal phase-out is needed to meet the goals of the Paris Agreement, but is hindered by serious challenges ranging from vested interests to the risks of social disruption. To understand how to organize a global coal phase-out, it is crucial to go beyond cost-effective climate mitigation scenarios and learn from the experience of previous coal transitions. Despite the relevance of the topic, evidence remains fragmented throughout different research fields, and not easily accessible. To address this gap, this paper provides a systematic map and comprehensive review of the literature on historical coal transitions. We use computer-assisted systematic mapping and review methods to chart and evaluate the available evidence on historical declines in coal production and consumption. We extracted a dataset of 278 case studies from 194 publications, covering coal transitions in 44 countries and ranging from the end of the 19th century until 2021. We find a relatively recent and rapidly expanding body of literature reflecting the growing importance of an early coal phase-out in scientific and political debates. Previous evidence has primarily focused on the United Kingdom, the United States, and Germany, while other countries that experienced large coal declines, like those in Eastern Europe, are strongly underrepresented. An increasing number of studies, mostly published in the last 5 years, has been focusing on China. Most of the countries successfully reducing coal dependency have undergone both demand-side and supply-side transitions. This supports the use of policy approaches targeting both demand and supply to achieve a complete coal phase-out. From a political economy perspective, our dataset highlights that most transitions are driven by rising production costs for coal, falling prices for alternative energies, or local environmental concerns, especially regarding air pollution. The main challenges for coal-dependent regions are structural change transformations, in particular for industry and labor. Rising unemployment is the most largely documented outcome in the sample. Policymakers at multiple levels are instrumental in facilitating coal transitions. They rely mainly on regulatory instruments to foster the transitions and compensation schemes or investment plans to deal with their transformative processes. Even though many models suggest that coal phase-outs are among the low-hanging fruits on the way to climate neutrality and meeting the international climate goals, our case studies analysis highlights the intricate political economy at work that needs to be addressed through well-designed and just policies. KW - climate change mitigation KW - coal transitions KW - evidence synthesis KW - political economy KW - systematic map Y1 - 2021 U6 - https://doi.org/10.1088/1748-9326/ac1b58 SN - 1748-9326 VL - 16 IS - 11 PB - Institute of Physics Publishing (IOP) CY - Bristol ER - TY - JOUR A1 - Kotz, Maximilian A1 - Wenz, Leonie A1 - Stechemesser, Annika A1 - Kalkuhl, Matthias A1 - Levermann, Anders T1 - Day-to-day temperature variability reduces economic growth JF - Nature climate change N2 - Elevated annual average temperature has been found to impact macro-economic growth. However, various fundamental elements of the economy are affected by deviations of daily temperature from seasonal expectations which are not well reflected in annual averages. Here we show that increases in seasonally adjusted day-to-day temperature variability reduce macro-economic growth independent of and in addition to changes in annual average temperature. Combining observed day-to-day temperature variability with subnational economic data for 1,537 regions worldwide over 40 years in fixed-effects panel models, we find that an extra degree of variability results in a five percentage-point reduction in regional growth rates on average. The impact of day-to-day variability is modulated by seasonal temperature difference and income, resulting in highest vulnerability in low-latitude, low-income regions (12 percentage-point reduction). These findings illuminate a new, global-impact channel in the climate–economy relationship that demands a more comprehensive assessment in both climate and integrated assessment models. KW - Climate change KW - Climate-change impacts KW - Economics KW - Environmental economics KW - Environmental impact Y1 - 2021 U6 - https://doi.org/10.1038/s41558-020-00985-5 SN - 1758-678X SN - 1758-6798 VL - 11 IS - 4 SP - 319 EP - 325 PB - Nature Publishing Group CY - London ER - TY - JOUR A1 - Edenhofer, Ottmar A1 - Franks, Max A1 - Kalkuhl, Matthias T1 - Pigou in the 21st century BT - a tribute on the occasion of the 100th anniversary of the publication of The Economics of Welfare JF - International tax and public finance N2 - The year 2020 marks the centennial of the publication of Arthur Cecil Pigou's magnum opus The Economics of Welfare. Pigou's pricing principles have had an enduring influence on the academic debate, with a widespread consensus having emerged among economists that Pigouvian taxes or subsidies are theoretically desirable, but politically infeasible. In this article, we revisit Pigou's contribution and argue that this consensus is somewhat spurious, particularly in two ways: (1) Economists are too quick to ignore the theoretical problems and subtleties that Pigouvian pricing still faces; (2) The wholesale skepticism concerning the political viability of Pigouvian pricing is at odds with its recent practical achievements. These two points are made by, first, outlining the theoretical and political challenges that include uncertainty about the social cost of carbon, the unclear relationship between the cost-benefit and cost-effectiveness approaches, distributional concerns, fragmented ministerial responsibilities, an unstable tax base, commitment problems, lack of acceptance and trust between government and citizens as well as incomplete international cooperation. Secondly, we discuss the recent political success of Pigouvian pricing, as evidenced by the German government's 2019 climate policy reform and the EU's Green Deal. We conclude by presenting a research agenda for addressing the remaining barriers that need to be overcome to make Pigouvian pricing a common political practice. KW - Environmental economics KW - Climate change economics KW - Carbon pricing KW - Pigouvian taxation KW - Economic policy Y1 - 2021 U6 - https://doi.org/10.1007/s10797-020-09653-y SN - 0927-5940 SN - 1573-6970 VL - 28 IS - 5 SP - 1090 EP - 1121 PB - Springer CY - Dordrecht ER - TY - JOUR A1 - Diluiso, Francesca A1 - Annicchiarico, Barbara A1 - Kalkuhl, Matthias A1 - Minx, Jan Christoph T1 - Climate actions and macro-financial stability BT - the role of central banks JF - Journal of environmental economics and management N2 - Limiting global warming to well below 2 degrees C may pose threats to macroeconomic and financial stability. In an estimated Euro Area New Keynesian model with financial frictions and climate policy, we study the possible perils of a low-carbon transition and evaluate the role of monetary policy and financial regulation. We show that, even for very ambitious climate targets, transition costs are moderate along a timely and gradual mitigation pathway. Inflation volatility strongly increases for disorderly climate policy, demanding a strong monetary response by central banks. In reaction to an adverse financial shock originating in the fossil sector, a green quantitative easing policy can provide an effective stimulus to the economy, but its stabilizing properties do not significantly differ from those of market neutral asset purchase programs. A financial regulation, encouraging the decarbonization of the banks' balance sheets via ad hoc capital requirements, can significantly reduce the severity of a financial crisis, but prolongs the recovery phase. Our results suggest that the involvement of central banks in climate actions must be carefully designed to be in compliance with their mandate and to avoid unintended trade-offs. KW - Climate policy KW - Green transition KW - Monetary policy KW - Capital requirements KW - Green quantitative easing KW - Euro area Y1 - 2021 U6 - https://doi.org/10.1016/j.jeem.2021.102548 SN - 0095-0696 SN - 1096-0449 VL - 110 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Montrone, Lorenzo A1 - Steckel, Jan Christoph A1 - Kalkuhl, Matthias T1 - The type of power capacity matters for economic development BT - evidence from a global panel JF - Resource and energy economics N2 - We examine the relationship between different types of power investments and regional economic dynamics. We construct a novel panel dataset combining data on regional GDP and power capacity additions for different technologies between 1960 and 2015, which covers 65% of the global power capacity that has been installed in this period. We use an event study design to identify the effect of power capacity addition on GDP per capita, exploiting the fact that the exact amount of power capacity coming online each year is determined by random construction delays. We find evidence that GDP per capita increases by 0.2% in the 6 years around the coming online of 100 MW coal-fired power capacity. We find similar effects for hydropower capacity, but not for any other type of power capacity. The positive effects are regionally bounded and stronger for projects on new sites (green-field). The magnitude of this effect might not be comparable to the total external costs of building new coal-fired power capacity, yet our results help to explain why policymakers favor coal investments for spurring regional growth. KW - Energy and development KW - Economic growth KW - Public infrastructure KW - Public investments KW - Electricity sector Y1 - 2022 U6 - https://doi.org/10.1016/j.reseneeco.2022.101313 SN - 0928-7655 VL - 69 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Hoffmann, Christin A1 - Hoppe, Julia Amelie A1 - Ziemann, Niklas T1 - The hare and the hedgehog BT - empirical evidence on the relationship between the individual Pace of Life and the speed-accuracy continuum JF - PLoS one N2 - Against the background of the speed-accuracy trade-off, we explored whether the Pace of Life can be used to identify heterogeneity in the strategy to place more weight on either fast or accurate accomplishments. The Pace of Life approaches an individual's exposure to time and is an intensively studied concept in the evolutionary biology research. Albeit overall rarely, it is increasingly used to understand human behavior and may fulfill many criteria of a personal trait. In a controlled laboratory environment, we measured the participants' Pace of Life, as well as their performance on a real-effort task. In the real-effort task, the participants had to encode words, whereby each word encoded correctly was associated with a monetary reward. We found that individuals with a faster Pace of Life accomplished more tasks in total. At the same time, they were less accurate and made more mistakes (in absolute terms) than those with a slower Pace of Life. Thus, the Pace of Life seems to be useful to identify an individual's stance on the speed-accuracy continuum. In our specific task, placing more weight on speed instead of accuracy paid off: Individuals with a faster Pace of Life were ultimately more successful (with regard to their monetary revenue). Y1 - 2021 U6 - https://doi.org/10.1371/journal.pone.0256490 SN - 1932-6203 VL - 16 IS - 8 PB - PLoS CY - San Fransisco ER - TY - JOUR A1 - Ploner, Tina A1 - Hess, Steffen A1 - Grum, Marcus A1 - Drewe-Boss, Philipp A1 - Walker, Jochen T1 - Using gradient boosting with stability selection on health insurance claims data to identify disease trajectories in chronic obstructive pulmonary disease JF - Statistical methods in medical research N2 - Objective We propose a data-driven method to detect temporal patterns of disease progression in high-dimensional claims data based on gradient boosting with stability selection. Materials and methods We identified patients with chronic obstructive pulmonary disease in a German health insurance claims database with 6.5 million individuals and divided them into a group of patients with the highest disease severity and a group of control patients with lower severity. We then used gradient boosting with stability selection to determine variables correlating with a chronic obstructive pulmonary disease diagnosis of highest severity and subsequently model the temporal progression of the disease using the selected variables. Results We identified a network of 20 diagnoses (e.g. respiratory failure), medications (e.g. anticholinergic drugs) and procedures associated with a subsequent chronic obstructive pulmonary disease diagnosis of highest severity. Furthermore, the network successfully captured temporal patterns, such as disease progressions from lower to higher severity grades. Discussion The temporal trajectories identified by our data-driven approach are compatible with existing knowledge about chronic obstructive pulmonary disease showing that the method can reliably select relevant variables in a high-dimensional context. Conclusion We provide a generalizable approach for the automatic detection of disease trajectories in claims data. This could help to diagnose diseases early, identify unknown risk factors and optimize treatment plans. KW - Gradient boosting KW - stability selection KW - claims data KW - disease trajectory KW - chronic obstructive pulmonary disease Y1 - 2020 U6 - https://doi.org/10.1177/0962280220938088 SN - 0962-2802 SN - 1477-0334 VL - 29 IS - 12 SP - 3684 EP - 3694 PB - Sage Publ. CY - London [u.a.] ER - TY - JOUR A1 - Brück, Christian A1 - Knauer, Thorsten A1 - Schwering, Anja T1 - Disclosure of value-based performance measures BT - evidence from German listed firms JF - Accounting and business research N2 - We examine the determinants of the disclosure of value-based (VB) performance measures in Germany. We argue that firms are more likely to disclose VB performance measures when information asymmetry is greater, as greater information asymmetry means firms have a greater need to credibly signal a shareholder value orientation. Using a hand-collected dataset of German listed firms covering 1,528 firm-years from 2004 to 2011, we demonstrate that firms are more likely to disclose a VB performance measure if the free float is larger than the blocking minority and also, when firms are large, if they have high foreign sales to total sales ratios and are not cross-listed internationally. Our results indicate that German firms use VB performance measures to improve investor communication and to substantiate their shareholder value orientation. Our results should be interpreted against a background of increased shareholder value orientation and sophisticated cost accounting in German firms. KW - Value-based performance measures KW - shareholder value KW - disclosure KW - investor communication Y1 - 2022 U6 - https://doi.org/10.1080/00014788.2022.2062585 SN - 0001-4788 SN - 2159-4260 VL - 53 IS - 6 SP - 671 EP - 698 PB - Routledge, Taylor & Francis Group CY - Abingdon ER - TY - JOUR A1 - Franks, Max A1 - Kalkuhl, Matthias A1 - Lessmann, Kai T1 - Optimal pricing for carbon dioxide removal under inter-regional leakage JF - Journal of environmental economics and management N2 - Carbon dioxide removal (CDR) moves atmospheric carbon to geological or land-based sinks. In a first-best setting, the optimal use of CDR is achieved by a removal subsidy that equals the optimal carbon tax and marginal damages. We derive second-best policy rules for CDR subsidies and carbon taxes when no global carbon price exists but a national government implements a unilateral climate policy. We find that the optimal carbon tax differs from an optimal CDR subsidy because of carbon leakage and a balance of resource trade effect. First, the optimal removal subsidy tends to be larger than the carbon tax because of lower supply-side leakage on fossil resource markets. Second, net carbon exporters exacerbate this wedge to increase producer surplus of their carbon resource producers, implying even larger removal subsidies. Third, net carbon importers may set their removal subsidy even below their carbon tax when marginal environmental damages are small, to appropriate producer surplus from carbon exporters. Y1 - 2022 U6 - https://doi.org/10.1016/j.jeem.2022.102769 SN - 1096-0449 SN - 0095-0696 VL - 117 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Borck, Rainald A1 - Schrauth, Philipp T1 - Population density and urban air quality JF - Regional science and urban economics N2 - We use panel data from Germany to analyze the effect of population density on urban air pollution (nitrogen oxides, particulate matter, ozone, and an aggregate index for bad air quality [AQI]). To address unobserved heterogeneity and omitted variables, we present long difference/fixed effects estimates and instrumental variables estimates, using historical population and soil quality as instruments. Using our preferred estimates, we find that the concentration increases with density for NO2 with an elasticity of 0.25 and particulate matter with elasticity of 0.08. The O-3 concentration decreases with density with an elasticity of -0.14. The AQI increases with density, with an elasticity of 0.11-0.13. We also present a variety of robustness tests. Overall, the paper shows that higher population density worsens local air quality. KW - Population density KW - Air pollution Y1 - 2020 U6 - https://doi.org/10.1016/j.regsciurbeco.2020.103596 SN - 0166-0462 SN - 1879-2308 VL - 86 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Kapidzic, Sanja A1 - Frey, Felix A1 - Neuberger, Christoph A1 - Stieglitz, Stefan A1 - Mirbabaie, Milad T1 - Crisis communication on Twitter BT - differences between user types in top tweets about the 2015 “refugee crisis” in Germany JF - International journal of communication N2 - The study explores differences between three user types in the top tweets about the 2015 “refugee crisis” in Germany and presents the results of a quantitative content analysis. All tweets with the keyword “Flüchtlinge” posted for a monthlong period following September 13, 2015, the day Germany decided to implement border controls, were collected (N = 763,752). The top 2,495 tweets according to number of retweets were selected for analysis. Differences between news media, public and private actor tweets in topics, tweet characteristics such as tone and opinion expression, links, and specific sentiments toward refugees were analyzed. We found strong differences between the tweets. Public actor tweets were the main source of positive sentiment toward refugees and the main information source on refugee support. News media tweets mostly reflected traditional journalistic norms of impartiality and objectivity, whereas private actor tweets were more diverse in sentiments toward refugees. KW - refugee crisis 2015 KW - Germany KW - social media KW - Twitter KW - user types Y1 - 2023 UR - https://ijoc.org/index.php/ijoc/article/view/18172/4022 SN - 1932-8036 VL - 17 SP - 735 EP - 754 PB - The Annenberg Center for Communication CY - Los Angeles, Calif. ER - TY - JOUR A1 - Kirchner, Vera T1 - Umfassend oder überfrachtet? BT - warum das Integrationsfach WAT/AWT an seine Grenzen gerät JF - MINT-Zirkel N2 - In der Theorie klingt es erst mal pädagogisch und didaktisch verlockend: Umfassend ausgebildete Lehrkräfte verharren nicht stur in ihren fachlichen Grenzen, sondern unterrichten Phänomene in ihren mannigfaltigen Zusammenhängen. So erwerben Schüler*innen die Möglichkeit, Sachverhalte umfassend aus verschiedenen Perspektiven zu betrachten und ihnen kompetent zu begegnen. Im Hinblick auf eine vollgestopfte Stundentafel scheint dies auch zeitlich effizient: Warum verschiedene Fächer aufwenden, wenn man drei oder vier Bildungsanliegen in einem zweistündigen Fach unterbringen kann? Y1 - 2023 UR - https://mint-zirkel.de/2023/02/fachdidaktik/ SN - 2193-9845 IS - 3 SP - 14 PB - Klett MINT CY - Stuttgart ER - TY - JOUR A1 - Kalkuhl, Matthias A1 - Schwerhoff, Gregor A1 - Waha, Katharina T1 - Land tenure, climate and risk management JF - Ecological economics N2 - We analyze to what extent climate conditions affect the prevalence of sharecropping as a form of traditional land tenure. We investigate how sharecropping tenure is related to climate risk and how it interacts with fertilizer use and livestock ownership that both influence production risk. We first develop a stylized theoretical model to illustrate the role of climate for land tenure and production. Our empirical analysis is based on more than 9000 households with considerable heterogeneity in climate conditions across several African countries. We find that farmers in areas with low precipitation are more likely to be sharecroppers. We further find evidence for risk management interaction effects as sharecropping farmers are less likely to own livestock and more likely to use fertilizer. In economies where formal kinds of insurance are unavailable, sharecropping thus functions as a form of insurance and reduces the need for potentially costly risk management strategies. KW - traditional land tenure KW - climate KW - risk management KW - agriculture KW - Africa KW - sharecropping Y1 - 2020 U6 - https://doi.org/10.1016/j.ecolecon.2019.106573 SN - 0921-8009 SN - 1873-6106 VL - 171 PB - Elsevier Science CY - Amsterdam [u.a.] ER - TY - CHAP A1 - Köster, Antonia A1 - Baumann, Annika A1 - Krasnova, Hanna A1 - Avital, Michel A1 - Lyytinen, Kalle A1 - Rossi, Matti T1 - Panel 1: to share or not to share BT - should is researchers share or hoard their precious data? T2 - Proceedings of the 28th European Conference on Information Systems (ECIS): ECIS 2020 Panels N2 - Data sharing requires researchers to publish their (primary) data and any supporting research materials. With increased attention on reproducibility and more transparent research requiring sharing of data, the issues surrounding data sharing are moving beyond whether data sharing is beneficial, to what kind of research data should be shared and how. However, despite its benefits, data sharing still is not common practice in Information Systems (IS) research. The panel seeks to discuss the controversies related to data sharing in research, specifically focusing on the IS discipline. It remains unclear how the positive effects of data sharing that are often framed as extending beyond the individual researcher (e.g., openness for innovation) can be utilized while reducing the downsides often associated with negative consequences for the individual researcher (e.g., losing a competitive advantage). To foster data sharing practices in IS, the panel will address this dilemma by drawing on the panelists’ expertise. Y1 - 2020 UR - https://aisel.aisnet.org/ecis2020_panels/3 PB - AIS Electronic Library (AISeL) CY - [Erscheinungsort nicht ermittelbar] ER - TY - JOUR A1 - Spiekermann, Sarah A1 - Krasnova, Hanna A1 - Hinz, Oliver A1 - Baumann, Annika A1 - Benlian, Alexander A1 - Gimpel, Henner A1 - Heimbach, Irina A1 - Koester, Antonia A1 - Maedche, Alexander A1 - Niehaves, Bjoern A1 - Risius, Marten A1 - Trenz, Manuel T1 - Values and ethics in information systems BT - a state-of-the-art analysis and avenues for future research JF - Business & information systems engineering Y1 - 2022 U6 - https://doi.org/10.1007/s12599-021-00734-8 SN - 2363-7005 SN - 1867-0202 VL - 64 IS - 2 SP - 247 EP - 264 PB - Springer Gabler CY - Wiesbaden ER - TY - CHAP A1 - Krasnova, Hanna A1 - Gundlach, Jana A1 - Baumann, Annika T1 - Coming back for more BT - the effect of news feed serendipity on social networking site sage T2 - PACIS 2022 proceedings N2 - Recent spikes in social networking site (SNS) usage times have launched investigations into reasons for excessive SNS usage. Extending research on social factors (i.e., fear of missing out), this study considers the News Feed setup. More specifically, we suggest that the order of the News Feed (chronological vs. algorithmically assembled posts) affects usage behaviors. Against the background of the variable reward schedule, this study hypothesizes that the different orders exert serendipity differently. Serendipity, termed as unexpected lucky encounters with information, resembles variable rewards. Studies have evidenced a relation between variable rewards and excessive behaviors. Similarly, we hypothesize that order-induced serendipitous encounters affect SNS usage times and explore this link in a two-wave survey with an experimental setup (users using either chronological or algorithmic News Feeds). While theoretically extending explanations for increased SNS usage times by considering the News Feed order, practically the study will offer recommendations for relevant stakeholders. Y1 - 2022 UR - https://aisel.aisnet.org/pacis2022/271 SN - 9781958200018 PB - AIS Electronic Library (AISeL) CY - [Erscheinungsort nicht ermittelbar] ER - TY - JOUR A1 - Krause, Hannes-Vincent A1 - Große Deters, Fenne A1 - Baumann, Annika A1 - Krasnova, Hanna T1 - Active social media use and its impact on well-being BT - an experimental study on the effects of posting pictures on Instagram JF - Journal of computer-mediated communication : a journal of the International Communication Association N2 - Active use of social networking sites (SNSs) has long been assumed to benefit users' well-being. However, this established hypothesis is increasingly being challenged, with scholars criticizing its lack of empirical support and the imprecise conceptualization of active use. Nevertheless, with considerable heterogeneity among existing studies on the hypothesis and causal evidence still limited, a final verdict on its robustness is still pending. To contribute to this ongoing debate, we conducted a week-long randomized control trial with N = 381 adult Instagram users recruited via Prolific. Specifically, we tested how active SNS use, operationalized as picture postings on Instagram, affects different dimensions of well-being. The results depicted a positive effect on users' positive affect but null findings for other well-being outcomes. The findings broadly align with the recent criticism against the active use hypothesis and support the call for a more nuanced view on the impact of SNSs.
Lay Summary Active use of social networking sites (SNSs) has long been assumed to benefit users' well-being. However, this established assumption is increasingly being challenged, with scholars criticizing its lack of empirical support and the imprecise conceptualization of active use. Nevertheless, with great diversity among conducted studies on the hypothesis and a lack of causal evidence, a final verdict on its viability is still pending. To contribute to this ongoing debate, we conducted a week-long experimental investigation with 381 adult Instagram users. Specifically, we tested how posting pictures on Instagram affects different aspects of well-being. The results of this study depicted a positive effect of posting Instagram pictures on users' experienced positive emotions but no effects on other aspects of well-being. The findings broadly align with the recent criticism against the active use hypothesis and support the call for a more nuanced view on the impact of SNSs on users. KW - social networking sites KW - social media KW - Instagram KW - well-being KW - experiment KW - randomized control trial Y1 - 2022 U6 - https://doi.org/10.1093/jcmc/zmac037 SN - 1083-6101 VL - 28 IS - 1 PB - Oxford Univ. Press CY - Oxford ER - TY - JOUR A1 - Sandberg, Helene A1 - Alnoor, Alhamzah A1 - Tiberius, Victor T1 - Environmental, social, and governance ratings and financial performance BT - Evidence from the European food industry JF - Business strategy and the environment N2 - Long-term value creation is expected not only to be concerned with maximizing shareholder value but also includes the impact on other stakeholders and the environment. Environmental, social, and governance (ESG) issues are therefore gaining increasing importance, in line with the growing demand for corporate sustainability. ESG ratings foster the comparison of companies with respect to their sustainable practices. This study aims to investigate how ESG ratings impact financial performance in the European food industry. Ordinary least squares regression is applied to analyze the relation between ESG ratings and financial performance over a 4-year period from 2017 to 2020. The profitability measures Return on Assets (ROA) and Return on Equity (ROE) are employed as financial performance measures, while ESG ratings are obtained from the database CSRHub. Results show that higher ESG ratings are associated with better financial performance. Although the effect is modest in the present study, the findings support previous results that ESG ratings are positively related to financial performance. Nonetheless, they also highlight that ESG ratings strongly converge to the mean, which depicts the need to reassess whether ESG ratings are able to measure actual ESG behavior. KW - ESG ratings KW - firm performance KW - food industry Y1 - 2022 U6 - https://doi.org/10.1002/bse.3259 SN - 0964-4733 SN - 1099-0836 VL - 32 IS - 4 SP - 2471 EP - 2489 PB - Wiley CY - New York ER - TY - JOUR A1 - Fredrich, Viktor A1 - Bouncken, Ricarda B. A1 - Tiberius, Victor T1 - Dyadic business model convergence or divergence in alliances? BT - a configurational approach JF - Journal of business research N2 - In this study, we contribute to the scholarly conversation on firm-level business model changes following a neoconfigurational approach. By exploring configurations of business model changes over time, we add the direction of business model changes-namely business model convergence or divergence-as a vital avenue to the business model innovation literature. We identify necessary business model convergence and divergence recipes in a sample of N = 217 strategic dyadic alliances. Firstly, technological proximity emerges as a single precondition to both converging and diverging business models. Secondly, business models between competitors either converge through complementarities or tend not to change relative to each other. Thirdly, equity participation enables business model divergence through co-specialization. We conclude with a discussion of business model trajectories and future research directions. KW - Business model innovation KW - Business model changes KW - Convergence vs KW - divergence KW - Strategic alliances KW - Fuzzy -set qualitative comparative KW - analysis KW - (fsQCA) Y1 - 2022 U6 - https://doi.org/10.1016/j.jbusres.2022.08.046 SN - 0148-2963 SN - 1873-7978 VL - 153 SP - 300 EP - 308 PB - Elsevier CY - New York ER - TY - JOUR A1 - Kraus, Sascha A1 - Li, Hongbo A1 - Kang, Qi A1 - Westhead, Paul A1 - Tiberius, Victor T1 - The sharing economy BT - a bibliometric analysis of the state-of-the-art JF - International journal of entrepreneurial behavior & research N2 - Purpose Quantitative bibliometric approaches were used to statistically and objectively explore patterns in the sharing economy literature. Design/methodology/approach Journal (co-)citation analysis, author (co-)citation analysis, institution citation and co-operation analysis, keyword co-occurrence analysis, document (co-)citation analysis and burst detection analysis were conducted based on a bibliometric data set relating to sharing economy publications. Findings Sharing economy research is multi- and interdisciplinary. Journals focused upon products liability, organizing framework, profile characteristics, diverse economies, consumption system and everyday life themes. Authors focused upon profile characteristics, sharing economy organization, social connections, first principle and diverse economy themes. No institution dominated the research field. Keyword co-occurrence analysis identified organizing framework, tourism industry, consumer behavior, food waste, generous exchange and quality cue as research themes. Document co-citation analysis found research themes relating to the tourism industry, exploring public acceptability, agri-food system, commercial orientation, products liability and social connection. Most cited authors, institutions and documents are reported. Research limitations/implications The study did not exclusively focus on publications in top-tier journals. Future studies could run analyses relating to top-tier journals alone, and then run analyses relating to less renowned journals alone. To address the potential fuzzy results concern, reviews could focus on business and/or management research alone. Longitudinal reviews conducted over several points in time are warranted. Future reviews could combine qualitative and quantitative approaches. Originality/value We contribute by analyzing information relating to the population of all sharing economy articles. In addition, we contribute by employing several quantitative bibliometric approaches that enable the identification of trends relating to the themes and patterns in the growing literature. KW - bibliometric analysis KW - citations KW - co-citation analysis KW - co-occurrence KW - analysis KW - research themes KW - sharing economy Y1 - 2020 U6 - https://doi.org/10.1108/IJEBR-06-2020-0438 SN - 1355-2554 SN - 1758-6534 VL - 26 IS - 8 SP - 1769 EP - 1786 PB - Emerald Group Publishing Limited CY - Bingley ER - TY - JOUR A1 - Kraus, Sascha A1 - Traunmüller, Verena A1 - Kailer, Norbert A1 - Tiberius, Victor T1 - The dark triad in entrepreneurship research BT - a systematic literature review JF - Journal of enterprising culture : JEC N2 - The impact of traits in entrepreneurship has been subject to intense discussion. Apart from favorable traits fostering opportunity recognition, entrepreneurial orientation, venture performance, and other variables, a younger research stream also addresses the role of negative traits. Among them, the dark triad, comprising of narcissism, Machiavellianism, and psychopathy, have gained specific attention. This systematic literature review aims to structure the field, identify current research themes, and provide a better understanding of prior research outcomes. Our results show that dark triad research addresses entrepreneurial activity, opportunity recognition, entrepreneurial orientation, entrepreneurial leadership, the and entrepreneurial motives. Among the dark triad traits, narcissism is stressed most in research so far. It relates to firm performance, risk, and leadership behavior, whereas Machiavellianism and psychopathy relate to opportunity recognition and exploitation. We also identify several research gaps, which can be addressed in future research. KW - dark triad KW - entrepreneurship KW - psychology KW - traits Y1 - 2020 U6 - https://doi.org/10.1142/S0218495820500156 SN - 0218-4958 SN - 1793-6330 VL - 28 IS - 04 SP - 353 EP - 373 PB - World Scientific CY - Singapore ER - TY - JOUR A1 - Kirchner, Vera A1 - Penning, Isabelle T1 - Berufswahl differenzieren(d) BT - Differenzierung als wesentliche Dimension beruflicher Orientierung JF - Fördermagazin : Sekundarstufe N2 - Bäcker:in, Beiköch:in oder Büromanager:in: Welcher berufliche Lebensweg passt zu mir? Gerade für Schüler:innen mit Unterstützungsbedarf kann die Antwort auf diese Frage besonders schwierig sein. Doch Unterricht kann mit vielfältigen Maßnahmen die Berufswahl unterstützen. KW - Differenzierung KW - Berufsorientierung KW - Berufsvorbereitung KW - Berufswahl KW - Life Design KW - Gestaltungskompetenz KW - Berufsbiografie KW - Förderbedarf KW - Berufschancen KW - theoriereduziert Y1 - 2023 SN - 2195-7142 IS - 3 SP - 2 EP - 6 PB - Friedrich Verlag CY - Hannover ER - TY - CHAP A1 - Klaue, Katharina A1 - Oehlschläger, Patricia A1 - Zender, Raphael A1 - Siebert, Ernestine A1 - Lucke, Ulrike A1 - Herbst, Uta A1 - Hefner, Manuel ED - Gronau, Norbert ED - Heine, Moreen ED - Poustcchi, K. ED - Krasnova, Hanna T1 - Automatisierung im Verhandlungstraining durch den Einsatz intelligenter Dialogsysteme und Virtual Reality T2 - Entwicklungen, Chancen und Herausforderungen der Digitalisierung : Proceedings der 15. Internationalen Tagung Wirtschaftsinformatik, WI 2020, Potsdam, Germany, March 9-11, 2020 - Community Tracks N2 - Erfolgreiches Verhandeln stellt einen Schlüsselfaktor für Unternehmenserfolge dar. Es angemessen zu trainieren kann jedoch sowohl zeitaufwendig als auch kostenintensiv werden, erfordert es doch idealerweise wiederholte, persönliche Übungen mit professionellen Verhandlungsführern oder Agenten. Digitale Trainingswerkzeuge können zwar ebenfalls Trainingserfolge erzielen, bieten aber eine mangelnde Authentizität der Übungssituation und erschweren somit den Transfer des Gelernten in den Berufsalltag. Das in diesem Beitrag vorgestellte Verhandlungstraining setzt Virtual Reality (VR) als Technologie für realitätsnahe Simulation ein, um eine räumlich authentische Übungssituation zu schaffen. Weiterhin dient ein sprachlich interagierendes Dialogsystem als automatisierter, virtueller Verhandlungsagent. Dieser wurde mit Interaktionsdaten aus einer Verhandlungsstudie trainiert und bietet Trainingspersonen somit einen wirksamen Übungspartner für das VR-Verhandlungstraining. KW - Virtual Reality KW - Verhandlungstraining KW - Chatbot KW - Dialogsystem Y1 - 2020 SN - 978-3-95545-336-7 U6 - https://doi.org/10.30844/wi_2020_t3-klaue VL - 2 SP - 88 EP - 102 PB - GITO Verlag für Industrielle Informationstechnik und Organisation CY - Berlin ER - TY - JOUR A1 - Kearney, Eric A1 - Razinskas, Stefan A1 - Weiss, Matthias A1 - Hoegl, Martin T1 - Gender diversity and team performance under time pressure BT - The role of team withdrawal and information elaboration JF - Journal of organizational behavior N2 - Findings in the extant literature are mixed concerning when and how gender diversity benefits team performance. We develop and test a model that posits that gender-diverse teams outperform gender-homogeneous teams when perceived time pressure is low, whereas the opposite is the case when perceived time pressure is high. Drawing on the categorization-elaboration model (CEM; van Knippenberg, De Dreu, & Homan, 2004), we begin with the assumption that information elaboration is the process whereby gender diversity fosters positive effects on team performance. However, also in line with the CEM, we argue that this process can be disrupted by adverse team dynamics. Specifically, we argue that as time pressure increases, higher gender diversity leads to more team withdrawal, which, in turn, moderates the positive indirect effect of gender diversity on team performance via information elaboration such that this effect becomes weaker as team withdrawal increases. In an experimental study of 142 four-person teams, we found support for this model that explains why perceived time pressure affects the performance of gender-diverse teams more negatively than that of gender-homogeneous teams. Our study sheds new light on when and how gender diversity can become either an asset or a liability for team performance. KW - gender diversity KW - information elaboration KW - perceived time pressure KW - team KW - performance KW - team withdrawal Y1 - 2022 U6 - https://doi.org/10.1002/job.2630 SN - 0894-3796 SN - 1099-1379 VL - 43 IS - 7 SP - 1224 EP - 1239 PB - Wiley CY - Hoboken ER - TY - JOUR A1 - Haggenmüller, Sandra A1 - Oehlschläger, Patricia A1 - Herbst, Uta A1 - Voeth, Markus T1 - Time for change? BT - scenario analysis on buyer–seller negotiations JF - The journal of business & industrial marketing N2 - Purpose: This study aims to provide probable future developments in the form of holistic scenarios for business negotiations. In recent years, negotiation research did not put a lot of emphasis on external changes. Consequently, current challenges and trends are scarcely integrated, making it difficult to support negotiation practice perspectively. Design/methodology/approach: This paper applies the structured, multi-method approach of scenario analysis. To examine the future space of negotiations, this combines qualitative and quantitative measures to base our analysis on negotiation experts’ assessments, estimations and visions of the negotiation future. Findings: The results comprise an overview of five negotiation scenarios in the year 2030 and of their individual drivers. The five revealed scenarios are: digital intelligence, business as usual, powerful network – the route to collaboration, powerful network – the route to predominance and system crash. Originality/value: The scenario analysis is a suitable approach that enables to relate various factors of the negotiation environment to negotiations themselves and allows an examination of future changes in buyer–seller negotiations and the creation of possible future scenarios. The identified scenarios provide an orientation for business decisions in the field of negotiation. KW - Negotiating KW - Scenario analysis KW - COVID-19 KW - Business negotiation KW - Buyer–seller negotiations KW - Future scenarios Y1 - 2022 U6 - https://doi.org/10.1108/JBIM-11-2021-0511 SN - 0885-8624 SN - 2052-1189 VL - 38 IS - 5 SP - 1215 EP - 1242 PB - Emerald Publishing Limited CY - Bingley ER - TY - JOUR A1 - Oehlschläger, Patricia A1 - Haggenmüller, Sandra A1 - Herbst, Uta A1 - Voeth, Markus T1 - The future of business negotiations BT - how megatrends influence negotiation behavior JF - Negotiation and Conflict Management Research N2 - Megatrends, affecting multiple aspects of future society, economy, and technology, drive today's business world. They are expected to impact all areas in companies and will, therefore, most likely occur in business negotiations. Although several studies address future developments of different business divisions, the megatrends' impact on negotiations has, thus far, not been analyzed. We designed a model including the three megatrends, i.e., globalization and economic shift, digitalization and new technologies, and demographic and social change, which have main effects on specific negotiation aspects. Our study combined an online survey and expert interviews with negotiation practitioners to provide a first broad view of how megatrends affect future business negotiations. The results confirm our model and reveal a close connection of megatrends and single negotiation aspects. Among others, we examine an orientation toward global partners, an increased interconnection through various electronic systems, as well as two opposite relationship directions - long-term and integrative through strategic cooperation vs. short-term and distributive through competition and new technologies. KW - business negotiation KW - negotiation trends KW - digitalization in negotiations KW - survey Y1 - 2023 U6 - https://doi.org/10.34891/2022.0496 SN - 1750-4708 SN - 1750-4716 VL - 16 IS - 1 SP - 23 EP - 47 PB - Carnegie Mellon University Library CY - [Pittsburgh, Pennsylvania] ER - TY - JOUR A1 - Voeth, Markus A1 - Herbst, Uta A1 - Haggenmüller, Sandra A1 - Weber, Marie-Christin T1 - Wie verhandeln deutsche Manager? JF - Zeitschrift für Konfliktmanagement Y1 - 2019 U6 - https://doi.org/10.9785/zkm-2020-230107 VL - 23 IS - 1 SP - 21 EP - 24 PB - Dr. Otto Schmidt CY - Köln ER - TY - JOUR A1 - Voeth, Markus A1 - Herbst, Uta A1 - Pöschl, Iris T1 - Sehen Sie mein Flipchart jetzt? JF - Harvard-Business-Manager N2 - Digitale Verhandlungen am Bildschirm sind seit über einem Jahr Alltag. Dennoch fremdeln viele Führungskräfte damit, wie eine aktuelle Studie zeigt. Y1 - 2021 UR - https://www.manager-magazin.de/harvard/digitalisierung/wie-digitale-verhandlungen-erfolgreich-sind-a-4ebd85a7-0002-0001-0000-000177421315?sara_ref=re-xx-cp-sh SN - 0945-6570 SN - 2195-1357 VL - 43 IS - 6 SP - 56 EP - 62 PB - Manager-Magazin-Verlags-Gesellschaft CY - Hamburg ER - TY - JOUR A1 - Sparr, Jennifer L. A1 - van Knippenberg, Daan A1 - Kearney, Eric T1 - Paradoxical leadership as sensegiving BT - stimulating change-readiness and change-oriented performance JF - Leadership & organization development journal N2 - Purpose Paradoxical leadership (PL) is an emerging perspective to understand how leaders help followers deal with paradoxical demands. Recently, the positive relationship between PL and follower performance was established. This paper builds on and extends this research by interpreting PL as sensegiving and developing theory about mediation in the relationship between PL and adaptive and proactive performance. Design/methodology/approach The paper develops a new measure for PL as sensegiving and provides a test of the mediation model with data from two different sources and two measurement times in a German company. Findings Multilevel mediation analysis (N = 154) supports the mediation model. Originality/value The paper presents sensegiving about paradox as a core element of PL, which informs the choice of change-readiness as mediator. This study also develops and validates a scale to measure PL in future research. KW - Paradoxical leadership KW - Sensegiving KW - Change-readiness KW - Adaptive KW - performance KW - Proactive performance Y1 - 2022 U6 - https://doi.org/10.1108/LODJ-04-2021-0161 SN - 0143-7739 SN - 1472-5347 VL - 43 IS - 2 SP - 225 EP - 237 PB - Emerald Group Publishing Limited CY - Bingley ER - TY - JOUR A1 - de Haas, Samuel A1 - Paha, Johannes T1 - Non-controlling minority shareholdings and collusion JF - Review of industrial organization N2 - This article merges theoretical literature on non-controlling minority shareholdings (NCMS) in a coherent model to study the effects of NCMS on competition and collusion. The model encompasses both the case of a common owner holding shares of rival firms as well as the case of cross ownership among rivals. We find that by softening competition, NCMS weaken the sustainability of collusion under a greater variety of situations than was indicated by earlier literature. Such effects exist, in particular, in the presence of an effective competition authority. KW - collusion KW - common ownership KW - cross ownership KW - minority shareholdings Y1 - 2020 U6 - https://doi.org/10.1007/s11151-020-09758-y SN - 0889-938X SN - 1573-7160 VL - 58 IS - 3 SP - 431 EP - 454 PB - Springer CY - Dordrecht ER - TY - JOUR A1 - Tiberius, Victor A1 - Schwarzer, Hannes A1 - Roig-Dobón, Salvador T1 - Radical innovations BT - between established knowledge and future research opportunities JF - Journal of innovation & knowledge : JIK N2 - The fast growing body of radical innovation research is fragmented and difficult to overlook. We provide an overview of the most cited journals, authors, and publications and conduct a bibliographic coupling to structure the literature landscape. We identified the following research clusters: management of radical innovations, organizational learning and knowledge, financial aspects of radical innovation, radical innovation adoption and diffusion, radical industry innovations as challenges for incumbents, and radical innovation in specific industries. Based on an in-depth content analysis of these clusters, we identify the following future research opportunities: A systematic compilation of all intra- and extra-organizational management aspects, moderators, and mediators, extending radical innovation research's epistemological basis by adding strategic foresight, further research in individual, group (team), organizational, and inter-organizational capabilities required for radical innovation, a managerial perspective on adoption and diffusion of radical innovations, applying portfolio theory and real options theory to radical innovation research, stronger research efforts on coping strategies for firms faced with competitors' radical innovations, and intensifying both industry-specific and cross-industry research. KW - Bibliometric analysis KW - Bibliographic coupling KW - Citation analysis KW - Radical innovation Y1 - 2021 U6 - https://doi.org/10.1016/j.jik.2020.09.001 SN - 2530-7614 SN - 2444-569X VL - 6 IS - 3 SP - 145 EP - 153 PB - Elsevier CY - Amsterdam ER - TY - THES A1 - Haase, Jennifer T1 - Creative intensive processes T1 - Kreativ-Intensive-Prozesse BT - an approach to model creative work BT - ein Ansatz zur Modellierung kreativer Arbeit N2 - Creativity – developing something new and useful – is a constant challenge in the working world. Work processes, services, or products must be sensibly adapted to changing times. To be able to analyze and, if necessary, adapt creativity in work processes, a precise understanding of these creative activities is necessary. Process modeling techniques are often used to capture business processes, represent them graphically and analyze them for adaptation possibilities. This has been very limited for creative work. An accurate understanding of creative work is subject to the challenge that, on the one hand, it is usually very complex and iterative. On the other hand, it is at least partially unpredictable as new things emerge. How can the complexity of creative business processes be adequately addressed and simultaneously manageable? This dissertation attempts to answer this question by first developing a precise process understanding of creative work. In an interdisciplinary approach, the literature on the process description of creativity-intensive work is analyzed from the perspective of psychology, organizational studies, and business informatics. In addition, a digital ethnographic study in the context of software development is used to analyze creative work. A model is developed based on which four elementary process components can be analyzed: Intention of the creative activity, Creation to develop the new, Evaluation to assess its meaningfulness, and Planning of the activities arising in the process – in short, the ICEP model. These four process elements are then translated into the Knockledge Modeling Description Language (KMDL), which was developed to capture and represent knowledge-intensive business processes. The modeling extension based on the ICEP model enables creative business processes to be identified and specified without the need for extensive modeling of all process details. The modeling extension proposed here was developed using ethnographic data and then applied to other organizational process contexts. The modeling method was applied to other business contexts and evaluated by external parties as part of two expert studies. The developed ICEP model provides an analytical framework for complex creative work processes. It can be comprehensively integrated into process models by transforming it into a modeling method, thus expanding the understanding of existing creative work in as-is process analyses. N2 - Kreativität – etwas Neues und Nützliches zu entwickeln – ist eine ständige Herausforderung in der Arbeitswelt. Arbeitsabläufe, Dienstleistungen oder Produkte müssen sinnvoll an den Wandel der Zeit angepasst werden. Um die Kreativität in Arbeitsprozessen analysieren und gegebenenfalls anpassen zu können, ist ein genaues Verständnis dieser kreativen Aktivitäten notwendig. Prozessmodellierungstechniken werden häufig eingesetzt, um Geschäftsprozesse zu erfassen, grafisch darzustellen und auf Anpassungsmöglichkeiten zu analysieren. Dies ist für kreative Arbeit nur sehr begrenzt möglich. Ein genaues Verständnis der kreativen Arbeit unterliegt der Herausforderung, dass sie zum einen in der Regel sehr komplex und iterativ ist. Andererseits ist sie zumindest teilweise unvorhersehbar, da immer wieder Neues entsteht. Wie lässt sich die Komplexität kreativer Geschäftsprozesse adäquat adressieren und gleichzeitig handhabbar machen? Diese Dissertation versucht, diese Frage zu beantworten, indem sie zunächst ein präzises Prozessverständnis kreativer Arbeit entwickelt. In einem interdisziplinären Ansatz wird die Literatur zur Prozessbeschreibung kreativitätsintensiver Arbeit aus der Perspektive der Psychologie, der Organisationswissenschaft und der Wirtschaftsinformatik analysiert. Darüber hinaus wird eine digital-ethnographische Studie im Kontext der Softwareentwicklung zur Analyse kreativer Arbeit herangezogen. Es wird ein Modell entwickelt, auf dessen Basis vier elementare Prozesskomponenten identifiziert werden können: Intention der kreativen Tätigkeit, Creation zur Entwicklung des Neuen, Evaluation zur Beurteilung der Sinnhaftigkeit und Planung der im Prozess anfallenden Aktivitäten - kurz: das ICEP-Modell. Diese vier Prozesselemente werden dann in die Knockledge Modeling Description Language (KMDL) überführt, die zur Erfassung und Darstellung wissensintensiver Geschäftsprozesse entwickelt wurde. Die Modellierungserweiterung auf der Grundlage des ICEP-Modells ermöglicht es, kreative Geschäftsprozesse zu identifizieren und zu spezifizieren, ohne dass eine umfangreiche Modellierung aller Prozessdetails erforderlich ist. Die hier vorgeschlagene Modellierungserweiterung wurde anhand ethnographischer Daten entwickelt und anschließend auf andere organisatorische Prozesskontexte angewendet und im Rahmen von zwei Expertenstudien von Modellierern evaluiert. Das entwickelte ICEP-Modell bietet einen analytischen Rahmen für komplexe kreative Arbeitsprozesse. Es kann durch die Umwandlung in eine Modellierungsmethode umfassend in Prozessmodelle integriert werden und erweitert so das Verständnis für bestehende kreative Arbeit in Ist-Prozess-Analysen. KW - creativity KW - business process modeling KW - KMDL KW - creative process KW - digital ethnography KW - KMDL KW - Geschäftsprozessmodellierung KW - kreativer Prozess KW - Kreativität KW - digitale Ethnographie Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-593886 ER - TY - JOUR A1 - Fürstenberg, Nils A1 - Alfes, Kerstin A1 - Kearney, Eric T1 - How and when paradoxical leadership benefits work engagement BT - the role of goal clarity and work autonomy JF - Journal of occupational and organizational psychology / British Psychological Society N2 - Paradoxical leadership behaviour (PLB) represents an emerging leadership construct that can help leaders deal with conflicting demands. In this paper, we report three studies that add to this nascent literature theoretically, methodologically, and empirically. In Study 1, we validate an effective short-form measure of global PLB using three different samples. In Studies 2 and 3, we draw on the job demands-resources model to propose that paradoxical leaders promote followers' work engagement by simultaneously fostering follower goal clarity and work autonomy. The results of survey data from Studies 2 and 3 largely confirm our model. Specifically, our findings show that PLB is positively associated with follower goal clarity and work autonomy, and that PLB exerts an indirect effect on work engagement via these variables. Moreover, our results support a hypothesized interaction effect of goal clarity and work autonomy to predict followers' work engagement, as well as a conditional indirect effect of PLB on work engagement via the interactive effect. We discuss the practical implications for leaders and organizations. Practitioner points To effectively engage followers in their work, leaders should create work environments in which followers know exactly what to do (i.e., have high goal clarity), but at the same time can determine on their own how to do their work (i.e., have high work autonomy) To foster both goal clarity and work autonomy, leaders should combine communal (e.g., other-centred, flexibility-providing) and agentic aspects of leadership (e.g., maintaining decision control and enforcing performance standards). HR departments should design leadership trainings that help leaders to combine seemingly opposing, yet ultimately synergistic behaviours. KW - paradoxical leadership behaviour KW - paradox theory KW - job demands KW - resources KW - model KW - goal clarity KW - work autonomy KW - work engagement Y1 - 2021 U6 - https://doi.org/10.1111/joop.12344 SN - 0963-1798 SN - 2044-8325 VL - 94 IS - 3 SP - 672 EP - 705 PB - Wiley CY - Hoboken ER - TY - JOUR A1 - Schröder, Katharina A1 - Tiberius, Victor A1 - Bouncken, Ricarda B. A1 - Kraus, Sascha T1 - Strategic entrepreneurship BT - mapping a research field JF - International journal of entrepreneurial behavior & research N2 - Purpose: Strategic entrepreneurship (SE) depicts the nexus of strategic management and entrepreneurship, suggesting that firms can create superior wealth when simultaneously pursuing advantage-seeking and opportunity-seeking behavior. As the rapid growth in SE research led to a multidisciplinary, scattered and fragmented literature landscape, the authors aim to structure this research field. Design/methodology/approach: The authors employ a bibliographic coupling and literature review of the strategic entrepreneurship research field. Findings: The authors identify and describe five major research streams with 15 sub-themes in recent SE research. Based on our findings, the authors propose an integrated research framework and research gaps for future research. Originality/value: To the authors' knowledge, this is the first review on SE based on a bibliographic coupling. KW - bibliometric analysis KW - competitive advantage KW - opportunities KW - strategic KW - entrepreneurship Y1 - 2020 U6 - https://doi.org/10.1108/IJEBR-11-2020-0798 SN - 1355-2554 SN - 1758-6534 VL - 27 IS - 3 SP - 753 EP - 776 PB - Emerald Group Publishing Limited CY - Bingley ER - TY - JOUR A1 - Bosch, David A1 - Smimou, Kamal T1 - Traders’ motivation and hedging pressure in commodity futures markets JF - Research in international business and finance N2 - This study seeks to explain the major drivers of trading activity in commodity futures markets and gage the effect of trading activity on commodity prices. Rather than concentrating on a specific commodity subgroup or a particular type of commodity traders, we provide an extensive overview of the behavior across all market participants and their influence on commodity prices by using a broad set of commodity futures contracts. Although commodity futures returns show co-movement with financial fundamentals (U.S. dollar index, equity, and bond markets), based on the Disaggregated Commitment of Traders Report (DCOT), this relationship cannot be attributed to trading activity. Pricing in commodity markets can be predominantly attributed to hedgers and influential speculators (money managers), whereas small speculators (nonreportable traders) are crucial to some soft commodity futures similar to dealers in metals commodity futures. Furthermore, we find limited cases where inventory changes exert a sizable influence on position changes of DCOT traders. KW - Hedgers KW - Speculators KW - Motivation KW - Interaction KW - Futures prices KW - Commodity KW - markets Y1 - 2021 U6 - https://doi.org/10.1016/j.ribaf.2021.101529 SN - 0275-5319 SN - 1878-3384 VL - 59 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Panhans, Matthew T. A1 - Schumacher, Reinhard T1 - Theory in closer contact with industrial life BT - American institutional economists on competition theory and policy JF - Journal of institutional economics N2 - This paper investigates the views on competition theory and policy of the American institutional economists during the first half of the 20th century. These perspectives contrasted with those of contemporary neoclassical and later mainstream economic approaches. We identify three distinct dimensions to an institutionalist perspective on competition. First, institutionalist approaches focused on describing industry details, so as to bring theory into closer contact with reality. Second, institutionalists emphasized that while competition was sometimes beneficial, it could also be disruptive. Third, institutionalists had a broad view of the objectives of competition policy that extended beyond effects on consumer welfare. Consequently, institutionalists advocated for a wide range of policies to enhance competition, including industrial self-regulation, broad stakeholder representation within corporations, and direct governmental regulations. Their experimental attitude implied that policy would always be evolving, and antitrust enforcement might be only one stage in the development toward a regime of industrial regulation. KW - Competition KW - economic thought KW - industrial organization KW - institutional KW - economics KW - institutionalism KW - public policy Y1 - 2021 U6 - https://doi.org/10.1017/S1744137421000357 SN - 1744-1374 SN - 1744-1382 VL - 17 IS - 5 SP - 781 EP - 798 PB - Cambridge Univ. Press CY - Cambridge ER - TY - JOUR A1 - Tiberius, Victor A1 - Hoffmeister, Leonie A1 - Weyland, Michael T1 - Prospective shifts in executive education BT - an international Delphi study JF - The international journal of management education N2 - Executive education (EE) has been an established means for management education. However, due to the ever-changing business environment, progress in education technology, and new competitors, EE has been continuously evolving and can be expected to further change. Employing a three-stage international Delphi study, we identify a plausible scenario for the further development of EE over the next decade. The results suggest major changes for management training. The panel expects major shifts in teaching methods and curricula construction. Business schools are expected to increase content customization, to adapt delivery formats, and to enhance coverage of topical issues to better respond to leaders' needs. KW - Continuous education KW - Delphi study KW - Executive education KW - Leadership KW - development KW - Management education Y1 - 2021 U6 - https://doi.org/10.1016/j.ijme.2021.100514 SN - 1472-8117 SN - 2352-3565 VL - 19 IS - 3 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Siebert, Ernestine Cathérine A1 - Herbst, Uta T1 - New perspectives on issue analysis BT - one-sided preferences as a strategic source in multi-issue negotiations JF - Negotiation journal N2 - Researchers have shown that structuring issues and organizing an agenda before a negotiation lead to improved negotiation performance. By using issue analysis, negotiators become aware of their own and their opponents' preferences on negotiation issues and are able to use this knowledge to optimize their degree of success. Following research on asymmetrical preferences in negotiations, we introduce a new approach for issue analysis that considers the identification of one-sided preferences, specifically a 0-preference for issues from one party. We conducted an experimental study to test if this type of preference for an issue (chance issue) yields strategic potential for a negotiator. We also examined whether the identification of these chance issues could be particularly relevant for a low-power party in negotiations with a power imbalance, to overcome the lower scope of action due to the weaker negotiating position. The results indicate initial verification that no preference at all for one issue could lead to higher individual performance and noneconomic outcomes. Joint performance was positively affected by 0-preference, even in unbalanced power situations. KW - negotiation preparation KW - issue analysis KW - preference differences KW - negotiation strategy KW - power imbalance KW - multi-issue negotiation Y1 - 2021 U6 - https://doi.org/10.1111/nejo.12379 SN - 0748-4526 SN - 1571-9979 VL - 37 IS - 4 SP - 485 EP - 518 PB - Wiley-Blackwell CY - Oxford ER - TY - GEN A1 - Otto, Christian A1 - Piontek, Franziska A1 - Kalkuhl, Matthias A1 - Frieler, Katja T1 - Event-based models to understand the scale of the impact of extremes T2 - Nature energy N2 - Climate change entails an intensification of extreme weather events that can potentially trigger socioeconomic and energy system disruptions. As we approach 1 degrees C of global warming we should start learning from historical extremes and explicitly incorporate such events in integrated climate-economy and energy systems models. KW - Climate-change impacts KW - Energy economics KW - Socioeconomic scenarios Y1 - 2020 U6 - https://doi.org/10.1038/s41560-020-0562-4 SN - 2058-7546 VL - 5 IS - 2 SP - 111 EP - 114 PB - Nature Publishing Group CY - London ER - TY - JOUR A1 - Orland, Andreas A1 - Padubrin, Max T1 - Is there a gender hiring gap in academic economics? BT - evidence from a network analysis JF - Royal Society Open Science N2 - We collect a network dataset of tenured economics faculty in Austria, Germany and Switzerland. We rank the 100 institutions included with a minimum violation ranking. This ranking is positively and significantly correlated with the Times Higher Education ranking of economics institutions. According to the network ranking, individuals on average go down about 23 ranks from their doctoral institution to their employing institution. While the share of females in our dataset is only 15%, we do not observe a significant gender hiring gap (a difference in rank changes between male and female faculty). We conduct a robustness check with the Handelsblatt and the Times Higher Education ranking. According to these rankings, individuals on average go down only about two ranks. We do not observe a significant gender hiring gap using these two rankings (although the dataset underlying this analysis is small and these estimates are likely to be noisy). Finally, we discuss the limitations of the network ranking in our context. KW - gender KW - networks KW - academia Y1 - 2022 U6 - https://doi.org/10.1098/rsos.210717 SN - 2054-5703 VL - 9 IS - 2 PB - Royal Society CY - London ER - TY - JOUR A1 - Fischer, Caroline A1 - Schott, Carina T1 - Why people enter and stay in public service careers BT - the role of parental socialization and an interest in politics JF - International review of administrative sciences : an international journal of comparative public administration N2 - This article examines the effect of parental socialization and interest in politics on entering and staying in public service careers. We incorporate two related explanations, yet commonly used in different fields of literature, to explain public sector choice. First, following social learning theory, we hypothesize that parents serve as role models and thereby affect their children's sector choice. Additionally, we test the hypothesis that parental socialization leads to a longer stay in public sector jobs while assuming that it serves as a buffer against turnover. Second, following public service motivation process theory, we expect that 'interest in politics' is influenced by parental socialization and that this concept, in turn, leads to a public sector career. A representative set of longitudinal data from the Swiss household panel (1999-2014) was used to analyse these hypotheses (n = 2,933, N = 37,328). The results indicate that parental socialization serves as a stronger predictor of public sector choice than an interest in politics. Furthermore, people with parents working in the public sector tend to stay longer in their public sector jobs. Points for practitioners For practitioners, the results of this study are relevant as they highlight the limited usefulness of addressing job applicants' interest in politics in the recruitment process. Human resources managers who want to ensure a public-service-motivated workforce are therefore advised to focus on human resources activities that stimulate public service motivation after job entry. We also advise close interaction between universities and public organizations so that students develop a realistic picture of the government as a future employer and do not experience a 'reality shock' after job entry. KW - human resources management KW - panel analysis KW - public sector choice KW - public KW - service motivation KW - socialization Y1 - 2020 U6 - https://doi.org/10.1177/0020852319886913 SN - 0020-8523 SN - 1461-7226 VL - 88 IS - 1 SP - 59 EP - 75 PB - Sage Publ. CY - London ER - TY - THES A1 - Böken, Björn T1 - Improving prediction accuracy using dynamic information N2 - Accurately solving classification problems nowadays is likely to be the most relevant machine learning task. Binary classification separating two classes only is algorithmically simpler but has fewer potential applications as many real-world problems are multi-class. On the reverse, separating only a subset of classes simplifies the classification task. Even though existing multi-class machine learning algorithms are very flexible regarding the number of classes, they assume that the target set Y is fixed and cannot be restricted once the training is finished. On the other hand, existing state-of-the-art production environments are becoming increasingly interconnected with the advance of Industry 4.0 and related technologies such that additional information can simplify the respective classification problems. In light of this, the main aim of this thesis is to introduce dynamic classification that generalizes multi-class classification such that the target class set can be restricted arbitrarily to a non-empty class subset M of Y at any time between two consecutive predictions. This task is solved by a combination of two algorithmic approaches. First, classifier calibration, which transforms predictions into posterior probability estimates that are intended to be well calibrated. The analysis provided focuses on monotonic calibration and in particular corrects wrong statements that appeared in the literature. It also reveals that bin-based evaluation metrics, which became popular in recent years, are unjustified and should not be used at all. Next, the validity of Platt scaling, which is the most relevant parametric calibration approach, is analyzed in depth. In particular, its optimality for classifier predictions distributed according to four different families of probability distributions as well its equivalence with Beta calibration up to a sigmoidal preprocessing are proven. For non-monotonic calibration, extended variants on kernel density estimation and the ensemble method EKDE are introduced. Finally, the calibration techniques are evaluated using a simulation study with complete information as well as on a selection of 46 real-world data sets. Building on this, classifier calibration is applied as part of decomposition-based classification that aims to reduce multi-class problems to simpler (usually binary) prediction tasks. For the involved fusing step performed at prediction time, a new approach based on evidence theory is presented that uses classifier calibration to model mass functions. This allows the analysis of decomposition-based classification against a strictly formal background and to prove closed-form equations for the overall combinations. Furthermore, the same formalism leads to a consistent integration of dynamic class information, yielding a theoretically justified and computationally tractable dynamic classification model. The insights gained from this modeling are combined with pairwise coupling, which is one of the most relevant reduction-based classification approaches, such that all individual predictions are combined with a weight. This not only generalizes existing works on pairwise coupling but also enables the integration of dynamic class information. Lastly, a thorough empirical study is performed that compares all newly introduced approaches to existing state-of-the-art techniques. For this, evaluation metrics for dynamic classification are introduced that depend on corresponding sampling strategies. Thereafter, these are applied during a three-part evaluation. First, support vector machines and random forests are applied on 26 data sets from the UCI Machine Learning Repository. Second, two state-of-the-art deep neural networks are evaluated on five benchmark data sets from a relatively recent reference work. Here, computationally feasible strategies to apply the presented algorithms in combination with large-scale models are particularly relevant because a naive application is computationally intractable. Finally, reference data from a real-world process allowing the inclusion of dynamic class information are collected and evaluated. The results show that in combination with support vector machines and random forests, pairwise coupling approaches yield the best results, while in combination with deep neural networks, differences between the different approaches are mostly small to negligible. Most importantly, all results empirically confirm that dynamic classification succeeds in improving the respective prediction accuracies. Therefore, it is crucial to pass dynamic class information in respective applications, which requires an appropriate digital infrastructure. N2 - Klassifikationsprobleme akkurat zu lösen ist heutzutage wahrscheinlich die relevanteste Machine-Learning-Aufgabe. Binäre Klassifikation zur Unterscheidung von nur zwei Klassen ist algorithmisch einfacher, hat aber weniger potenzielle Anwendungen, da in der Praxis oft Mehrklassenprobleme auftreten. Demgegenüber vereinfacht die Unterscheidung nur innerhalb einer Untermenge von Klassen die Problemstellung. Obwohl viele existierende Machine-Learning-Algorithmen sehr flexibel mit Blick auf die Anzahl der Klassen sind, setzen sie voraus, dass die Zielmenge Y fest ist und nicht mehr eingeschränkt werden kann, sobald das Training abgeschlossen ist. Allerdings sind moderne Produktionsumgebungen mit dem Voranschreiten von Industrie 4.0 und entsprechenden Technologien zunehmend digital verbunden, sodass zusätzliche Informationen die entsprechenden Klassifikationsprobleme vereinfachen können. Vor diesem Hintergrund ist das Hauptziel dieser Arbeit, dynamische Klassifikation als Verallgemeinerung von Mehrklassen-Klassifikation einzuführen, bei der die Zielmenge jederzeit zwischen zwei aufeinanderfolgenden Vorhersagen zu einer beliebigen, nicht leeren Teilmenge eingeschränkt werden kann. Diese Aufgabe wird durch die Kombination von zwei algorithmischen Ansätzen gelöst. Zunächst wird Klassifikator-Kalibrierung eingesetzt, mittels der Vorhersagen in Schätzungen der A-Posteriori-Wahrscheinlichkeiten transformiert werden, die gut kalibriert sein sollen. Die durchgeführte Analyse zielt auf monotone Kalibrierung ab und korrigiert insbesondere Falschaussagen, die in Referenzarbeiten veröffentlicht wurden. Außerdem zeigt sie, dass Bin-basierte Fehlermaße, die in den letzten Jahren populär geworden sind, ungerechtfertigt sind und nicht verwendet werden sollten. Weiterhin wird die Validität von Platt Scaling, dem relevantesten, parametrischen Kalibrierungsverfahren, genau analysiert. Insbesondere wird seine Optimalität für Klassifikatorvorhersagen, die gemäß vier Familien von Verteilungsfunktionen verteilt sind, sowie die Äquivalenz zu Beta-Kalibrierung bis auf eine sigmoidale Vorverarbeitung gezeigt. Für nicht monotone Kalibrierung werden erweiterte Varianten der Kerndichteschätzung und die Ensemblemethode EKDE eingeführt. Schließlich werden die Kalibrierungsverfahren im Rahmen einer Simulationsstudie mit vollständiger Information sowie auf 46 Referenzdatensätzen ausgewertet. Hierauf aufbauend wird Klassifikator-Kalibrierung als Teil von reduktionsbasierter Klassifikation eingesetzt, die zum Ziel hat, Mehrklassenprobleme auf einfachere (üblicherweise binäre) Entscheidungsprobleme zu reduzieren. Für den zugehörigen, während der Vorhersage notwendigen Fusionsschritt wird ein neuer, auf Evidenztheorie basierender Ansatz eingeführt, der Klassifikator-Kalibrierung zur Modellierung von Massefunktionen nutzt. Dies ermöglicht die Analyse von reduktionsbasierter Klassifikation in einem formalen Kontext sowie geschlossene Ausdrücke für die entsprechenden Gesamtkombinationen zu beweisen. Zusätzlich führt derselbe Formalismus zu einer konsistenten Integration von dynamischen Klasseninformationen, sodass sich ein theoretisch fundiertes und effizient zu berechnendes, dynamisches Klassifikationsmodell ergibt. Die hierbei gewonnenen Einsichten werden mit Pairwise Coupling, einem der relevantesten Verfahren für reduktionsbasierte Klassifikation, verbunden, wobei alle individuellen Vorhersagen mit einer Gewichtung kombiniert werden. Dies verallgemeinert nicht nur existierende Ansätze für Pairwise Coupling, sondern führt darüber hinaus auch zu einer Integration von dynamischen Klasseninformationen. Abschließend wird eine umfangreiche empirische Studie durchgeführt, die alle neu eingeführten Verfahren mit denen aus dem Stand der Forschung vergleicht. Hierfür werden Bewertungsfunktionen für dynamische Klassifikation eingeführt, die auf Sampling-Strategien basieren. Anschließend werden diese im Rahmen einer dreiteiligen Studie angewendet. Zunächst werden Support Vector Machines und Random Forests auf 26 Referenzdatensätzen aus dem UCI Machine Learning Repository angewendet. Im zweiten Teil werden zwei moderne, tiefe neuronale Netze auf fünf Referenzdatensätzen aus einer relativ aktuellen Referenzarbeit ausgewertet. Hierbei sind insbesondere Strategien relevant, die die Anwendung der eingeführten Verfahren in Verbindung mit großen Modellen ermöglicht, da eine naive Vorgehensweise nicht durchführbar ist. Schließlich wird ein Referenzdatensatz aus einem Produktionsprozess gewonnen, der die Integration von dynamischen Klasseninformationen ermöglicht, und ausgewertet. Die Ergebnisse zeigen, dass Pairwise-Coupling-Verfahren in Verbindung mit Support Vector Machines und Random Forests die besten Ergebnisse liefern, während in Verbindung mit tiefen neuronalen Netzen die Unterschiede zwischen den Verfahren oft klein bis vernachlässigbar sind. Am wichtigsten ist, dass alle Ergebnisse zeigen, dass dynamische Klassifikation die entsprechenden Erkennungsgenauigkeiten verbessert. Daher ist es entscheidend, dynamische Klasseninformationen in den entsprechenden Anwendungen zur Verfügung zu stellen, was eine entsprechende digitale Infrastruktur erfordert. KW - dynamic classification KW - multi-class classification KW - classifier calibration KW - evidence theory KW - Dempster–Shafer theory KW - Deep Learning KW - Deep Learning KW - Dempster-Shafer-Theorie KW - Klassifikator-Kalibrierung KW - dynamische Klassifikation KW - Evidenztheorie KW - Mehrklassen-Klassifikation Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-585125 ER - TY - JOUR A1 - Jethon, André A1 - Reichard, Christoph T1 - Usability and actual use of performance information in German municipal budgets BT - the perspective of local politicians JF - Public money & management : integrating theory and practice in public management N2 - IMPACT German municipalities have prepared performance budgets for over 10 years. The incorporation of performance information into the budget is, however, still work in progress. Local politicians perceive the usability of non-financial information in the budget as low and do not use such information intensively for budget composition or other purposes. German municipal budgets are usually voluminous because of their highly detailed structure and the large amount of displayed performance data which rarely informs about outcomes. Such information does not meet the needs of councillors, for example in their struggles with political opponents. Some options for improving the usability of budgetary information are presented. KW - Councillor KW - performance budget KW - performance information KW - politician KW - usability KW - use Y1 - 2022 U6 - https://doi.org/10.1080/09540962.2021.1966193 SN - 0954-0962 SN - 1467-9302 VL - 42 IS - 3 SP - 152 EP - 159 PB - Routledge, Taylor & Francis Group CY - Abingdon ER - TY - JOUR A1 - Covi, Giovanni A1 - Eydam, Ulrich T1 - End of the sovereign-bank doom loop in the European Union? BT - the Bank Recovery and Resolution Directive JF - Journal of evolutionary economics N2 - In this paper we examine the relationship between the default risk of banks and sovereigns, i.e. the 'doom-loop'. Specifically, we try to assess the effectiveness of the implementation of the new recovery and resolution framework in the European Union. We use a panel with daily data on European banks and sovereigns ranging from 2012 to 2016 in order to test the effects of the Bank Recovery and Resolution Directive on the two-way feedback process. We find that there was a pronounced feedback loop between banks and sovereigns from 2012 to 2014. However, after the implementation of the European Banking Union, in 2015/2016, the magnitude of the doom-loop decreased and the spillovers became not statistically significant. Furthermore, our results suggest that the implementation of the new resolution framework is a suitable candidate to explain this finding. Overall, the results are robust across several specifications. KW - financial stability KW - sovereign bail-out KW - bail-in tool KW - doom loop KW - European Banking Union KW - Bank Recovery and Resolution Directive Y1 - 2020 U6 - https://doi.org/10.1007/s00191-018-0576-2 SN - 0936-9937 SN - 1432-1386 VL - 30 IS - 1 SP - 5 EP - 30 PB - Springer CY - Berlin ; Heidelberg ; New York ER - TY - JOUR A1 - Tiberius, Victor A1 - Hauptmeijer, Raoul T1 - Equity crowdfunding BT - Forecasting market development, platform evolution, and regulation JF - Journal of small business management : advancing small business management and entrepreneurship research worldwide / published on behalf of the International Council for Small Business N2 - In this study, we explore the development of equity crowdfunding (ECF) over the next 5 to 10 years by conducting an international Delphi study. Our results indicate that the ECF market is expected to grow significantly. However, it is unlikely to disrupt other forms of financing and will not cover all SME financing needs. ECF will remain a funding technique for SMEs and small investors; it is unlikely to attract large corporations or institutional investors. Platforms will impose stricter requirements for capital raisers, expand their services, and innovate their business models. National governments will probably partly liberalize the ECF market. KW - Equity crowdfunding KW - entrepreneurial finance KW - regulation KW - small KW - business KW - startup funding Y1 - 2021 U6 - https://doi.org/10.1080/00472778.2020.1849714 SN - 0047-2778 SN - 1540-627X VL - 59 IS - 2 SP - 337 EP - 369 PB - Taylor & Francis Group CY - London ER - TY - JOUR A1 - Ullrich, André A1 - Vladova, Gergana A1 - Eigelshoven, Felix A1 - Renz, André T1 - Data mining of scientific research on artificial intelligence in teaching and administration in higher education institutions BT - a bibliometrics analysis and recommendation for future research JF - Discover artificial intelligence N2 - Teaching and learning as well as administrative processes are still experiencing intensive changes with the rise of artificial intelligence (AI) technologies and its diverse application opportunities in the context of higher education. Therewith, the scientific interest in the topic in general, but also specific focal points rose as well. However, there is no structured overview on AI in teaching and administration processes in higher education institutions that allows to identify major research topics and trends, and concretizing peculiarities and develops recommendations for further action. To overcome this gap, this study seeks to systematize the current scientific discourse on AI in teaching and administration in higher education institutions. This study identified an (1) imbalance in research on AI in educational and administrative contexts, (2) an imbalance in disciplines and lack of interdisciplinary research, (3) inequalities in cross-national research activities, as well as (4) neglected research topics and paths. In this way, a comparative analysis between AI usage in administration and teaching and learning processes, a systematization of the state of research, an identification of research gaps as well as further research path on AI in higher education institutions are contributed to research. Y1 - 2022 U6 - https://doi.org/10.1007/s44163-022-00031-7 SN - 2731-0809 VL - 2 PB - Springer CY - Cham ER - TY - GEN A1 - Ullrich, André A1 - Vladova, Gergana A1 - Eigelshoven, Felix A1 - Renz, André T1 - Data mining of scientific research on artificial intelligence in teaching and administration in higher education institutions BT - a bibliometrics analysis and recommendation for future research T2 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe N2 - Teaching and learning as well as administrative processes are still experiencing intensive changes with the rise of artificial intelligence (AI) technologies and its diverse application opportunities in the context of higher education. Therewith, the scientific interest in the topic in general, but also specific focal points rose as well. However, there is no structured overview on AI in teaching and administration processes in higher education institutions that allows to identify major research topics and trends, and concretizing peculiarities and develops recommendations for further action. To overcome this gap, this study seeks to systematize the current scientific discourse on AI in teaching and administration in higher education institutions. This study identified an (1) imbalance in research on AI in educational and administrative contexts, (2) an imbalance in disciplines and lack of interdisciplinary research, (3) inequalities in cross-national research activities, as well as (4) neglected research topics and paths. In this way, a comparative analysis between AI usage in administration and teaching and learning processes, a systematization of the state of research, an identification of research gaps as well as further research path on AI in higher education institutions are contributed to research. T3 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe - 160 Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-589077 SN - 1867-5808 IS - 160 ER - TY - GEN A1 - Ritterbusch, Georg David A1 - Teichmann, Malte Rolf T1 - Defining the metaverse BT - A systematic literature review T2 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe N2 - The term Metaverse is emerging as a result of the late push by multinational technology conglomerates and a recent surge of interest in Web 3.0, Blockchain, NFT, and Cryptocurrencies. From a scientific point of view, there is no definite consensus on what the Metaverse will be like. This paper collects, analyzes, and synthesizes scientific definitions and the accompanying major characteristics of the Metaverse using the methodology of a Systematic Literature Review (SLR). Two revised definitions for the Metaverse are presented, both condensing the key attributes, where the first one is rather simplistic holistic describing “a three-dimensional online environment in which users represented by avatars interact with each other in virtual spaces decoupled from the real physical world”. In contrast, the second definition is specified in a more detailed manner in the paper and further discussed. These comprehensive definitions offer specialized and general scholars an application within and beyond the scientific context of the system science, information system science, computer science, and business informatics, by also introducing open research challenges. Furthermore, an outlook on the social, economic, and technical implications is given, and the preconditions that are necessary for a successful implementation are discussed. T3 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe - 159 KW - Metaverse KW - Systematics KW - Bibliometrics KW - Augmented reality KW - Taxonomy KW - Semantic Web KW - Second Life KW - Blockchains KW - Economics Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-588799 SN - 1867-5808 IS - 159 SP - 12368 EP - 12377 ER - TY - JOUR A1 - Dragičević, Nikolina A1 - Ullrich, André A1 - Tsui, Eric A1 - Gronau, Norbert T1 - A conceptual model of knowledge dynamics in the industry 4.0 smart grid scenario JF - Knowledge management research & practice : KMRP N2 - Technological advancements are giving rise to the fourth industrial revolution - Industry 4.0 -characterized by the mass employment of smart objects in highly reconfigurable and thoroughly connected industrialproduct-service systems. The purpose of this paper is to propose a theory-based knowledgedynamics model in the smart grid scenario that would provide a holistic view on the knowledge-based interactions among smart objects, humans, and other actors as an underlyingmechanism of value co-creation in Industry 4.0. A multi-loop and three-layer - physical, virtual, and interface - model of knowledge dynamics is developedby building on the concept of ba - an enabling space for interactions and theemergence of knowledge. The model depicts how big data analytics are just one component inunlocking the value of big data, whereas the tacit engagement of humans-in-the-loop - theirsense-making and decision-making - is needed for insights to be evoked fromanalytics reports and customer needs to be met. KW - Industry 4.0 KW - tacit knowledge KW - humans-in-the-loop KW - big data analytics KW - internet of things and services KW - smart grid Y1 - 2020 U6 - https://doi.org/10.1080/14778238.2019.1633893 SN - 1477-8238 SN - 1477-8246 VL - 18 IS - 2 SP - 199 EP - 213 PB - Taylor & Francis CY - London [u.a.] ER - TY - JOUR A1 - Ritterbusch, Georg David A1 - Teichmann, Malte Rolf T1 - Defining the metaverse BT - A systematic literature review JF - IEEE Access N2 - The term Metaverse is emerging as a result of the late push by multinational technology conglomerates and a recent surge of interest in Web 3.0, Blockchain, NFT, and Cryptocurrencies. From a scientific point of view, there is no definite consensus on what the Metaverse will be like. This paper collects, analyzes, and synthesizes scientific definitions and the accompanying major characteristics of the Metaverse using the methodology of a Systematic Literature Review (SLR). Two revised definitions for the Metaverse are presented, both condensing the key attributes, where the first one is rather simplistic holistic describing “a three-dimensional online environment in which users represented by avatars interact with each other in virtual spaces decoupled from the real physical world”. In contrast, the second definition is specified in a more detailed manner in the paper and further discussed. These comprehensive definitions offer specialized and general scholars an application within and beyond the scientific context of the system science, information system science, computer science, and business informatics, by also introducing open research challenges. Furthermore, an outlook on the social, economic, and technical implications is given, and the preconditions that are necessary for a successful implementation are discussed. KW - Metaverse KW - Systematics KW - Bibliometrics KW - Augmented reality KW - Taxonomy KW - Semantic Web KW - Second Life KW - Blockchains KW - Economics Y1 - 2023 U6 - https://doi.org/10.1109/ACCESS.2023.3241809 SN - 2169-3536 VL - 11 SP - 12368 EP - 12377 PB - Institute of Electrical and Electronics Engineers CY - New York, NY ER - TY - GEN A1 - Dragičević, Nikolina A1 - Vladova, Gergana A1 - Ullrich, André T1 - Design thinking capabilities in the digital world BT - A bibliometric analysis of emerging trends T2 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe N2 - Recent research suggests that design thinking practices may foster the development of needed capabilities in new digitalised landscapes. However, existing publications represent individual contributions, and we lack a holistic understanding of the value of design thinking in a digital world. No review, to date, has offered a holistic retrospection of this research. In response, in this bibliometric review, we aim to shed light on the intellectual structure of multidisciplinary design thinking literature related to capabilities relevant to the digital world in higher education and business settings, highlight current trends and suggest further studies to advance theoretical and empirical underpinnings. Our study addresses this aim using bibliometric methods—bibliographic coupling and co-word analysis as they are particularly suitable for identifying current trends and future research priorities at the forefront of the research. Overall, bibliometric analyses of the publications dealing with the related topics published in the last 10 years (extracted from the Web of Science database) expose six trends and two possible future research developments highlighting the expanding scope of the design thinking scientific field related to capabilities required for the (more sustainable and human-centric) digital world. Relatedly, design thinking becomes a relevant approach to be included in higher education curricula and human resources training to prepare students and workers for the changing work demands. This paper is well-suited for education and business practitioners seeking to embed design thinking capabilities in their curricula and for design thinking and other scholars wanting to understand the field and possible directions for future research. T3 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe - 158 KW - design thinking KW - digital technologies KW - digital transformation KW - capabilities KW - skills Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-588468 SN - 1867-5808 IS - 158 ER - TY - JOUR A1 - Dragičević, Nikolina A1 - Vladova, Gergana A1 - Ullrich, André T1 - Design thinking capabilities in the digital world BT - A bibliometric analysis of emerging trends JF - Frontiers in Education N2 - Recent research suggests that design thinking practices may foster the development of needed capabilities in new digitalised landscapes. However, existing publications represent individual contributions, and we lack a holistic understanding of the value of design thinking in a digital world. No review, to date, has offered a holistic retrospection of this research. In response, in this bibliometric review, we aim to shed light on the intellectual structure of multidisciplinary design thinking literature related to capabilities relevant to the digital world in higher education and business settings, highlight current trends and suggest further studies to advance theoretical and empirical underpinnings. Our study addresses this aim using bibliometric methods—bibliographic coupling and co-word analysis as they are particularly suitable for identifying current trends and future research priorities at the forefront of the research. Overall, bibliometric analyses of the publications dealing with the related topics published in the last 10 years (extracted from the Web of Science database) expose six trends and two possible future research developments highlighting the expanding scope of the design thinking scientific field related to capabilities required for the (more sustainable and human-centric) digital world. Relatedly, design thinking becomes a relevant approach to be included in higher education curricula and human resources training to prepare students and workers for the changing work demands. This paper is well-suited for education and business practitioners seeking to embed design thinking capabilities in their curricula and for design thinking and other scholars wanting to understand the field and possible directions for future research. KW - design thinking KW - digital technologies KW - digital transformation KW - capabilities KW - skills Y1 - 2023 U6 - https://doi.org/10.3389/feduc.2022.1012478 SN - 2504-284X VL - 7 PB - Frontiers CY - Lausanne, Schweiz ER - TY - JOUR A1 - Tiberius, Victor A1 - Gojowy, Robin A1 - Dabic, Marina T1 - Forecasting the future of robo advisory BT - a three-stage delphi study on economic, technological, and societal implications JF - Technological forecasting & social change N2 - Robo advisors represent a digital financial advice solution challenging traditional wealth and asset management, investment advice, retirement planning, and tax-loss harvesting. Based on algorithms, big data analysis, machine learning, and other technologies, these services minimize the necessity for human intervention. Based on an international three-stage Delphi study, we provide a plausible forecast of the development of the robo advisor industry, with regards to market development, competition, drivers of growth, customer segments, challenges, services, technologies, and societal change. The results suggest that the financial advice market will experience a further increase in the number of robo advisor services available. Existing and traditional financial advice players will be forced to adjust to the changing environment of the market. Due to low fees and ease of use, robo advisors will be made available to a broad cross section of society, and will cause significant market losses for traditional investment advice companies. Ten years from now, the predominant investment class will remain Exchange Traded Funds (ETFs). Even though degrees of human intervention are expected to vary considering the complexity of advice, automation will increase in significance when it comes to the development of robo advisors. KW - Robo advisor KW - Financial technology KW - FinTech KW - Investment advice KW - Delphi study KW - scenari Y1 - 2022 U6 - https://doi.org/10.1016/j.techfore.2022.121824 SN - 0040-1625 SN - 1873-5509 VL - 182 PB - Elsevier CY - New York ER - TY - JOUR A1 - Šedová, Barbora A1 - Kalkuhl, Matthias T1 - Who are the climate migrants and where do they go? BT - Evidence from rural India JF - World development N2 - In this paper, we move from the large strand of research that looks at evidence of climate migration to the questions: who are the climate migrants? and where do they go? These questions are crucial to design policies that mitigate welfare losses of migration choices due to climate change. We study the direct and heterogeneous associations between weather extremes and migration in rural India. We combine ERAS reanalysis data with the India Human Development Survey household panel and conduct regression analyses by applying linear probability and multinomial logit models. This enables us to establish a causal relationship between temperature and precipitation anomalies and overall migration as well as migration by destination. We show that adverse weather shocks decrease rural-rural and international migration and push people into cities in different, presumably more prosperous states. A series of positive weather shocks, however, facilitates international migration and migration to cities within the same state. Further, our results indicate that in contrast to other migrants, climate migrants are likely to be from the lower end of the skill distribution and from households strongly dependent on agricultural production. We estimate that approximately 8% of all rural-urban moves between 2005 and 2012 can be attributed to weather. This figure might increase as a consequence of climate change. Thus, a key policy recommendation is to take steps to facilitate integration of less educated migrants into the urban labor market. KW - climate change KW - migration KW - household analysis KW - India KW - econometrics Y1 - 2020 U6 - https://doi.org/10.1016/j.worlddev.2019.104848 SN - 0305-750X SN - 1873-5991 VL - 129 PB - Elsevier Science CY - Amsterdam ER - TY - JOUR A1 - Haase, Jennifer A1 - Hanel, Paul H. P. T1 - Priming creativity: Doing math reduces creativity and happiness whereas playing short online games enhance them JF - Frontiers in Education N2 - Creative thinking is an indispensable cognitive skill that is becoming increasingly important. In the present research, we tested the impact of games on creativity and emotions in a between-subject online experiment with four conditions (N = 658). (1) participants played a simple puzzle game that allowed many solutions (priming divergent thinking); (2) participants played a short game that required one fitting solution (priming convergent thinking); (3) participants performed mental arithmetic; (4) passive control condition. Results show that divergent and convergent creativity were higher after playing games and lower after mental arithmetic. Positive emotions did not function as a mediator, even though they were also heightened after playing the games and lower after mental arithmetic. However, contrary to previous research, we found no direct effect of emotions, creative self-efficacy, and growth- vs. fixed on creative performance. We discuss practical implications for digital learning and application settings. KW - creativity KW - priming KW - enhancement KW - math KW - games KW - happiness Y1 - 2022 U6 - https://doi.org/10.3389/feduc.2022.976459 SN - 2504-284X PB - Frontiers CY - Lausanne, Schweiz ER - TY - GEN A1 - Haase, Jennifer A1 - Hanel, Paul H. P. T1 - Priming creativity: Doing math reduces creativity and happiness whereas playing short online games enhance them T2 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe N2 - Creative thinking is an indispensable cognitive skill that is becoming increasingly important. In the present research, we tested the impact of games on creativity and emotions in a between-subject online experiment with four conditions (N = 658). (1) participants played a simple puzzle game that allowed many solutions (priming divergent thinking); (2) participants played a short game that required one fitting solution (priming convergent thinking); (3) participants performed mental arithmetic; (4) passive control condition. Results show that divergent and convergent creativity were higher after playing games and lower after mental arithmetic. Positive emotions did not function as a mediator, even though they were also heightened after playing the games and lower after mental arithmetic. However, contrary to previous research, we found no direct effect of emotions, creative self-efficacy, and growth- vs. fixed on creative performance. We discuss practical implications for digital learning and application settings. T3 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe - 154 KW - creativity KW - priming KW - enhancement KW - math KW - games KW - happiness Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-585909 SN - 1867-5808 IS - 154 ER - TY - JOUR A1 - Hebisch, Benjamin A1 - Wild, Andreas A1 - Herbst, Uta T1 - The power of alternative suppliers in the automotive industry BT - a matter of innovation? JF - Industrial marketing management : the international journal for industrial and high-tech firms N2 - The number of alternative suppliers is widely considered to be the most important source of power in supply chains. It is common knowledge that a buying company benefits from an increasing number of suppliers until a marginalization effect occurs. Consequently, a cost-benefit optimum must exist but has not been analyzed in a sufficiently differentiated manner in the literature. Particularly, research has not taken the variety of product groups, which is reflected by the degree of innovation, into account. Using a two-way analysis of variance, this study identifies the cost-benefit optimum for the number of suppliers and analyzes the moderating role of the degree of innovation. The analysis is based on real automotive business-to-business negotiation data. The results reveal that a cost-benefit optimum is reached at a number of three suppliers at the most. Furthermore, the impact of the number of suppliers is higher for innovative products than for more functional products. Purchasing managers can use the findings to determine the optimal size of their supplier choice set. KW - Purchasing performance KW - Number of alternatives KW - Automotive industry KW - Supply chain relationship Y1 - 2022 U6 - https://doi.org/10.1016/j.indmarman.2021.12.017 SN - 0019-8501 SN - 1873-2062 VL - 102 SP - 1 EP - 11 PB - Elsevier CY - New York ER - TY - JOUR A1 - Hölzle, Katharina A1 - Boer, Harry A1 - Björk, Jennie T1 - Creativity in and from people, processes, objects, and war zones JF - Creativity and innovation management Y1 - 2020 U6 - https://doi.org/10.1111/caim.12405 SN - 0963-1690 SN - 1467-8691 VL - 29 IS - 3 SP - 377 EP - 379 PB - Wiley-Blackwell CY - Oxford ER - TY - JOUR A1 - Gleiss, Alexander A1 - Kohlhagen, Marco A1 - Pousttchi, Key T1 - An apple a day BT - how the platform economy impacts value creation in the healthcare market JF - Electronic markets : EM ; the international journal of electronic commerce and business media N2 - The healthcare industry has been slow to adopt new technologies and practices. However, digital and data-enabled innovations diffuse the market, and the COVID-19 pandemic has recently emphasized the necessity of a fundamental digital transformation. Available research indicates the relevance of digital platforms in this process but has not studied their economic impact to date. In view of this research gap and the social and economic relevance of healthcare, we explore how digital platforms might affect value creation in this market with a particular focus on Google, Apple, Facebook, Amazon, and Microsoft (GAFAM). We rely on value network analyses to examine how GAFAM platforms introduce new value-creating roles and mechanisms in healthcare through their manifold products and services. Hereupon, we examine the GAFAM-impact on healthcare by scrutinizing the facilitators, activities, and effects. Our analyses show how GAFAM platforms multifacetedly untie conventional relationships and transform value creation structures in the healthcare market. KW - Digital platforms KW - Platform economy KW - Healthcare market KW - Digital health KW - GAFAM KW - Value network analysis Y1 - 2021 U6 - https://doi.org/10.1007/s12525-021-00467-2 SN - 1019-6781 SN - 1422-8890 VL - 31 IS - 4 SP - 849 EP - 876 PB - Springer CY - Heidelberg ER - TY - BOOK A1 - Gronau, Norbert T1 - Geschäftsprozessmanagement in Wirtschaft und Verwaltung N2 - Dieses Standardwerk zu Geschäftsprozessmanagement in Wirtschaft und Verwaltung gibt gleichzeitig einen Überblick über den aktuellen Stand der Forschung zu diesem Thema und führt Interessierte wie Studierende oder Praktiker in das Thema und seine Facetten ein. Aktuelle Entwicklungen wie Robotic Process Automation und Process Mining werden aufgegriffen. Im Mittelpunkt stehen die drei wesentlichen GPM- Blickwinkel Technik, Organisation und Mensch. Aus Sicht der Forschung werden innovative Methoden zur Modellierung und Analyse von Geschäftsprozessen beschrieben. Aus Sicht der Lehre dient das Buch als Einstiegslektüre und liefert Ansatzpunkte für die vertiefte Befassung mit einzelnen Aspekten des Geschäftsprozessmanagements. Für die Praxis beschreibt dieses Werk die dort bestehenden konzeptionellen und methodischen Hindernisse des Prozessmanagements und zeigt Wege zur Überwindung dieser Hindernisse. Die vorliegende Auflage wurde vollständig überarbeitet und stark erweitert, u. a. mit neuen Kapiteln zu Software für das Geschäftsprozessmanagement und zum Change Management. Y1 - 2022 UR - https://ebookcentral.proquest.com/lib/potsdamuni/detail.action?docID=7119120 SN - 978-3-95545-399-2 PB - Gito CY - Berlin ET - 3. Aufl. ER - TY - JFULL ED - Kirchner, Vera ED - Wüste, Andreas T1 - Unterricht Wirtschaft + Politik BT - Krisen überall? N2 - Krisen prägen unsere Zeit: Sei es zum Beispiel die Coronapandemie oder aktuell der Ukraine-Krieg. Die Folge: getriebene Politiker:innen und eine erschöpfte Gesellschaft? Wie also umgehen mit diesen multiplen Problemlagen und welche Rolle kann der Wirtschafts- und Politikunterricht hierbei spielen? Y1 - 2023 SN - 2751-1243 SN - 2191-6624 IS - 1 PB - Friedrich Verlag GmbH CY - Hannover ER - TY - JOUR A1 - Stoppel, Relika T1 - Alcohol availability and alcohol-attributable mortality BT - economic implications following a change in sales policy JF - CESifo economic studies : CESifo, a joint initiative of the University of Munich's Center for Economic Studies and the Ifo Institute N2 - It is commonly known that irresponsible alcohol use can have adverse effects. For some people, it results in health problems, for others in productivity loss, and some experience the worst possible outcome of alcohol misuse - death. This paper estimates the effect of reduced alcohol sales hours on alcohol-attributable mortality (AAM) in Estonia. Using novel mortality data from 1997 to 2015, this paper analyzes the effect of alcohol sales policies at both the county level and the country level. By applying the difference-in-differences method and the ARIMA model, this paper finds that the alcohol sales policy reduced AAM to between 1.710 and 2.401 deaths per 100,000 per month, which equals a reduction of 31% to 40% in AAM deaths. These findings suggest that individuals who are the most at risk of dying from alcohol-attributable causes of death benefit remarkably from reduced alcohol availability. KW - health policy KW - mortality KW - public health KW - alcohol Y1 - 2021 U6 - https://doi.org/10.1093/cesifo/ifab008 SN - 1610-241X SN - 1612-7501 VL - 67 IS - 4 SP - 463 EP - 487 PB - Oxford Univ. Press CY - Oxford ER - TY - JOUR A1 - Grum, Marcus A1 - Sultanow, Eldar A1 - Friedmann, Daniel A1 - Ulrich, Andre A1 - Gronau, Norbert T1 - Tools des Maschinellen Lernens BT - Marktstudie, Anwendungsbereiche & Lösungen der Künstlichen Intelligenz N2 - Künstliche Intelligenz ist in aller Munde. Immer mehr Anwendungsbereiche werden durch die Auswertung von vorliegenden Daten mit Algorithmen und Frameworks z.B. des Maschinellen Lernens erschlossen. Dieses Buch hat das Ziel, einen Überblick über gegenwärtig vorhandene Lösungen zu geben und darüber hinaus konkrete Hilfestellung bei der Auswahl von Algorithmen oder Tools bei spezifischen Problemstellungen zu bieten. Um diesem Anspruch gerecht zu werden, wurden 90 Lösungen mittels einer systematischen Literaturrecherche und Praxissuche identifiziert sowie anschließend klassifiziert. Mit Hilfe dieses Buches gelingt es, schnell die notwendigen Grundlagen zu verstehen, gängige Anwendungsgebiete zu identifizieren und den Prozess zur Auswahl eines passenden ML-Tools für das eigene Projekt systematisch zu meistern. Y1 - 2021 SN - 978-3-95545-380-0 SN - 978-3-95545-318-7 U6 - https://doi.org/10.30844/grum_2020 PB - Gito CY - Berlin ER - TY - JOUR A1 - Ullrich, André A1 - Vladova, Gergana A1 - Marquart, Danny A1 - Braun, Andreas A1 - Gronau, Norbert T1 - An overwiew of benefits and risks in open innovation projects and the influence of intermediary participation, decision-making authority, experience, and position on their perception JF - International journal of innovation management : IJIM N2 - This paper presents an exploratory study investigating the influence of the factors (1) intermediary participation, (2) decision-making authority, (3) position in the enterprise, and (4) experience in open innovation on the perception and assessment of the benefits and risks expected from participating in open innovation projects. For this purpose, an online survey was conducted in Germany, Austria and Switzerland. The result of this paper is an empirical evidence showing whether and how these factors affect the perception of potential benefits and risks expected within the context of open innovation project participation. Furthermore, the identified effects are discussed against the theory. Existing theory regarding the benefits and risks of open innovation is expanded by (1) finding that they are perceived mostly independently of the factors, (2) confirming the practical relevance of benefits and risks, and (3) enabling a finer distinction between their degrees of relevance according to respective contextual specifics. KW - Open innovation KW - intermediaries KW - benefits KW - decision-making KW - experience; KW - risks Y1 - 2022 U6 - https://doi.org/10.1142/S1363919622500128 SN - 1363-9196 SN - 1757-5877 VL - 26 IS - 02 PB - World Scientific Publ. CY - Singapore ER - TY - THES A1 - Baum, Katharina T1 - Social networking sites BT - implications for individual well-being and society Y1 - 2023 ER - TY - THES A1 - Dannenmann, Barbara T1 - Können technologiegestützte Verhandlungstrainings unter Einsatz von Künstlicher Intelligenz und Virtueller Realität das Vertriebstraining verbessern? T1 - Can technology-based negotiation trainings using artificial intelligence and virtual reality improve sales trainings? BT - Entwicklung und Evaluation eines automatisierten Verhandlungstrainings BT - development and evaluation of an automated negotiation training N2 - Digitale und gesellschaftliche Entwicklungen fordern kontinuierliche Weiterbildung für Mitarbeiter im Vertrieb. Es halten sich in dieser Berufssparte aber immer noch einige Mythen zum Training von Vertriebsmitarbeitern. Unter anderem deshalb wurde in der Vergangenheit der Trainingsbedarf im Vertrieb stark vernachlässigt. Die Arbeit befasst sich deshalb zunächst mit der Frage, wie der Vertrieb in Deutschland aktuell geschult wird (unter Einbezug der Corona-Pandemie) und ob sich aus den Trainingsgewohnheiten erste Hinweise zur Erlangung eines strategischen Wettbewerbsvorteils ergeben könnten. Dabei greift die Arbeit auf, dass Investitionen in das Training von Vertriebsmitarbeitern eine Anlage in die Wettbewerbsfähigkeit des Unternehmens sein könnten. Automatisierte Trainings, beispielsweise basierend auf Virtual Reality (VR) und Künstlicher Intelligenz (KI), könnten in der Aus- und Weiterbildung des Vertriebs einen effizienten Beitrag in der Sicherstellung eines strategischen Wettbewerbsvorteils leisten. Durch weitere Forschungsfragen befasst sich die Arbeit anschließend damit, wie ein automatisiertes Vertriebstraining mit KI- und VR-Inhalten unter Einbeziehung der Nutzer gestaltet werden muss, um Vertriebsmitarbeiter in einem dafür ausgewählten Verhandlungskontext zu trainieren. Dazu wird eine Anwendung mit Hilfe von Virtual Reality und Künstlicher Intelligenz in einem Verhandlungsdialog entwickelt, getestet und evaluiert. Die vorliegende Arbeit liefert eine Basis für die Automatisierung von Vertriebstrainings und im erweiterten Sinne für Trainings im Allgemeinen. N2 - Digital and social developments demand continuous training for sales staff. However, some myths about the training of sales staff still persist in this profession. This is one of the reasons why the need for training in sales has been strongly neglected in the past. This work therefore first deals with the question of how salespeople in Germany are currently trained (taking into account the Corona pandemic) and whether initial indications for gaining a strategic competitive advantage could result from training habits. It takes up the idea that investments in the training of sales staff could be an investment in the competitiveness of the company. Automated training, for example based on virtual reality (VR) and artificial intelligence (AI), could make an efficient contribution to ensuring a strategic competitive advantage in sales training. Through further research questions, the thesis then addresses how automated sales training with AI and VR content must be designed with user involvement in order to train sales employees in a negotiation context selected for this purpose. For this purpose, an application is developed, tested and evaluated using virtual reality and artificial intelligence in a negotiation dialogue. This work provides a basis for the automation of sales training and, in a broader sense, for training in general. KW - VR KW - KI KW - Vertrieb KW - Verhandlungen KW - Artificial Intelligence KW - Virtual Reality KW - negotiations KW - sales Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-577378 ER - TY - JOUR A1 - Kambasu, Obed T1 - Rationalising industrial action BT - how Ugandan public school teachers and public university lecturers explain their engagement in industrial action JF - Employee relations N2 - Purpose The purpose of this paper is to shed light on the rising waves of workplace militancy in the public sector and to provide insights into the perceptions that frame justification for industrial action among Ugandan public sector employees. Design/methodology/approach In-depth interviews and documentary analysis, analysed qualitatively, as well as a review of theoretical and empirical literature. Findings Public school teachers and public university lecturers in Uganda who frequently engage in industrial action mainly rationalise their engagement by the absence, or the ineffectiveness of alternative conflict resolution mechanisms. The findings also show that industrial action, even in resource-constrained settings like Uganda, is stimulated more by the desire to achieve equity rather than by the basic desire to improve working conditions. It is also notable that new, often unstructured, forms of workplace militancy continue to emerge in the public sector, and waves of industrial action are shifting from the industrial to the public sector. Practical implications Whereas industrial action is a protected labour right, the findings of this research strongly suggest that public employees do not necessarily enjoy their right to engage, but only reluctantly take industrial action as a "last resort". The findings will, therefore, help public managers and policymakers to appreciate their responsibility in reducing the compulsion for industrial action among public employees. Originality/value This paper provides a general explanation for industrial action from the perspective of the people involved, rather than explaining the causality of specific strike actions. At a time when industrial action is generally declining in the developed industrialised states, this paper sheds light on the rise in collective action in developing countries and especially in the public sector. KW - Industrial action KW - Strikes KW - Collective action KW - Public management Y1 - 2021 U6 - https://doi.org/10.1108/ER-05-2020-0246 SN - 0142-5455 SN - 1758-7069 VL - 43 IS - 5 SP - 1163 EP - 1177 PB - Emerald Group Publishing Limited CY - Bingley ER - TY - JOUR A1 - Moradian, Hanieh A1 - Lendlein, Andreas A1 - Gossen, Manfred T1 - Strategies for simultaneous and successive delivery of RNA JF - Journal of molecular medicine N2 - Advanced non-viral gene delivery experiments often require co-delivery of multiple nucleic acids. Therefore, the availability of reliable and robust co-transfection methods and defined selection criteria for their use in, e.g., expression of multimeric proteins or mixed RNA/DNA delivery is of utmost importance. Here, we investigated different co- and successive transfection approaches, with particular focus on in vitro transcribed messenger RNA (IVT-mRNA). Expression levels and patterns of two fluorescent protein reporters were determined, using different IVT-mRNA doses, carriers, and cell types. Quantitative parameters determining the efficiency of co-delivery were analyzed for IVT-mRNAs premixed before nanocarrier formation (integrated co-transfection) and when simultaneously transfecting cells with separately formed nanocarriers (parallel co-transfection), which resulted in a much higher level of expression heterogeneity for the two reporters. Successive delivery of mRNA revealed a lower transfection efficiency in the second transfection round. All these differences proved to be more pronounced for low mRNA doses. Concurrent delivery of siRNA with mRNA also indicated the highest co-transfection efficiency for integrated method. However, the maximum efficacy was shown for successive delivery, due to the kinetically different peak output for the two discretely operating entities. Our findings provide guidance for selection of the co-delivery method best suited to accommodate experimental requirements, highlighting in particular the nucleic acid dose-response dependence on co-delivery on the single-cell level. KW - integrated co-transfection KW - parallel co-transfection KW - successive KW - transfection KW - co-expression KW - in vitro synthesized mRNA KW - transfection methods Y1 - 2020 U6 - https://doi.org/10.1007/s00109-020-01956-1 SN - 0946-2716 SN - 1432-1440 VL - 98 IS - 12 SP - 1767 EP - 1779 PB - Springer CY - Heidelberg ER - TY - JOUR A1 - Neufeld, Maria A1 - Bobrova, Anastacia A1 - Davletov, Kairat A1 - Stelemekas, Mindaugas A1 - Stoppel, Relika A1 - Ferreira-Borges, Carina A1 - Breda, Joao A1 - Rehm, Jürgen T1 - Alcohol control policies in Former Soviet Union countries BT - a narrative review of three decades of policy changes and their apparent effects JF - Drug and alcohol review N2 - Issues The last Soviet anti-alcohol campaign of 1985 resulted in considerably reduced alcohol consumption and saved thousands of lives. But once the campaign's policies were abandoned and the Soviet alcohol monopoly broken up, a steep rise in mortality was observed in many of the newly formed successor countries, although some kept their monopolies. Almost 30 years after the campaign's end, the region faces diverse challenges in relation to alcohol. Approach The present narrative review sheds light on recent drinking trends and alcohol policy developments in the 15 Former Soviet Union (FSU) countries, highlighting the most important setbacks, achievements and best practices. Vignettes of alcohol control policies in Belarus, Estonia, Kazakhstan, Lithuania and Uzbekistan are presented to illustrate the recent developments.
Key Findings Over the past decade, drinking levels have declined in almost all FSU countries, paralleled by the introduction of various alcohol-control measures. The so-called three 'best buys' put forward by the World Health Organization to reduce alcohol-attributable burden (taxation and other measures to increase price, restrictions on alcohol availability and marketing) are relatively well implemented across the countries. Implications In recent years, evidence-based alcohol policies have been actively implemented as a response to the enormous alcohol-attributable burden in many of the countries, although there is big variance across and within different jurisdictions. Conclusion Strong declines in alcohol consumption were observed in the 15 FSU countries, which have introduced various alcohol control measures in recent years, resulting in a reduction of alcohol consumption in the World Health Organization European region overall. KW - alcohol KW - alcohol policy KW - Eastern Europe KW - Former Soviet Union KW - mortality Y1 - 2020 U6 - https://doi.org/10.1111/dar.13204 SN - 0959-5236 SN - 1465-3362 VL - 40 IS - 3 SP - 350 EP - 367 PB - Wiley CY - Hoboken ER - TY - JOUR A1 - Ermolina, Alena A1 - Tiberius, Victor T1 - Voice-controlled intelligent personal assistants in health care BT - International Delphi Study JF - Journal of medical internet research : international scientific journal for medical research, information and communication on the internet ; JMIR N2 - Background: Voice-controlled intelligent personal assistants (VIPAs), such as Amazon Echo and Google Home, involve artificial intelligence-powered algorithms designed to simulate humans. Their hands-free interface and growing capabilities have a wide range of applications in health care, covering off-clinic education, health monitoring, and communication. However, conflicting factors, such as patient safety and privacy concerns, make it difficult to foresee the further development of VIPAs in health care.
Objective: This study aimed to develop a plausible scenario for the further development of VIPAs in health care to support decision making regarding the procurement of VIPAs in health care organizations. Methods: We conducted a two-stage Delphi study with an internationally recruited panel consisting of voice assistant experts, medical professionals, and representatives of academia, governmental health authorities, and nonprofit health associations having expertise with voice technology. Twenty projections were formulated and evaluated by the panelists. Descriptive statistics were used to derive the desired scenario.
Results: The panelists expect VIPAs to be able to provide solid medical advice based on patients' personal health information and to have human-like conversations. However, in the short term, voice assistants might neither provide frustration-free user experience nor outperform or replace humans in health care. With a high level of consensus, the experts agreed with the potential of VIPAs to support elderly people and be widely used as anamnesis, informational, self-therapy, and communication tools by patients and health care professionals. Although users' and governments' privacy concerns are not expected to decrease in the near future, the panelists believe that strict regulations capable of preventing VIPAs from providing medical help services will not be imposed.
Conclusions: According to the surveyed experts, VIPAs will show notable technological development and gain more user trust in the near future, resulting in widespread application in health care. However, voice assistants are expected to solely support health care professionals in their daily operations and will not be able to outperform or replace medical staff. KW - Delphi study KW - medical informatics KW - voice-controlled intelligent personal KW - assistants KW - internet of things KW - smart devices Y1 - 2020 U6 - https://doi.org/10.2196/25312 SN - 1438-8871 VL - 23 IS - 4 PB - Healthcare World CY - Richmond, Va. ER - TY - THES A1 - Gandhi, Nilima T1 - Visionary leadership and job satisfaction T1 - Visionäre Führung und Arbeitszufriedenheit BT - an empirical investigation BT - eine empirische Untersuchung N2 - Current business organizations want to be more efficient and constantly evolving to find ways to retain talent. It is well established that visionary leadership plays a vital role in organizational success and contributes to a better working environment. This study aims to determine the effect of visionary leadership on employees' perceived job satisfaction. Specifically, it investigates whether the mediators meaningfulness at work and commitment to the leader impact the relationship. I take support from job demand resource theory to explain the overarching model used in this study and broaden-and-build theory to leverage the use of mediators. To test the hypotheses, evidence was collected in a multi-source, time-lagged design field study of 95 leader-follower dyads. The data was collected in a three-wave study, each survey appearing after one month. Data on employee perception of visionary leadership was collected in T1, data for both mediators were collected in T2, and employee perception of job satisfaction was collected in T3. The findings display that meaningfulness at work and commitment to the leader play positive intervening roles (in the form of a chain) in the indirect influence of visionary leadership on employee perceptions regarding job satisfaction. This research offers contributions to literature and theory by first broadening the existing knowledge on the effects of visionary leadership on employees. Second, it contributes to the literature on constructs meaningfulness at work, commitment to the leader, and job satisfaction. Third, it sheds light on the mediation mechanism dealing with study variables in line with the proposed model. Fourth, it integrates two theories, job demand resource theory and broaden-and-build theory providing further evidence. Additionally, the study provides practical implications for business leaders and HR practitioners. Overall, my study discusses the potential of visionary leadership behavior to elevate employee outcomes. The study aligns with previous research and answers several calls for further research on visionary leadership, job satisfaction, and mediation mechanism with meaningfulness at work and commitment to the leader. N2 - Heutige Unternehmen wollen effizienter sein und sich ständig weiterentwickeln, um Talente zu binden. Es ist bekannt, dass visionäre Führung eine wichtige Rolle für den Erfolg eines Unternehmens spielt und zu einem besseren Arbeitsumfeld beiträgt. Ziel dieser Studie ist es, die Auswirkungen visionärer Führung auf die wahrgenommene Arbeitszufriedenheit der Mitarbeiter zu ermitteln. Insbesondere wird untersucht, ob die Mediatoren Sinnhaftigkeit der Arbeit und Bindung an die Führungskraft einen Einfluss auf diese Beziehung haben. Ich stütze mich auf die Job Demand Resource theory, um das in dieser Studie verwendete übergreifende Modell zu erklären, und auf die Broaden-and-Build theory, um die Verwendung von Mediatoren zu nutzen. Um die Hypothesen zu testen, wurden in einer Feldstudie mit mehreren Quellen und zeitlich versetztem Design Daten von 95 aus Führungskraft und Geführten bestehenden Dyaden gesammelt. In einer Drei-Wellen-Studie wurden die Daten zur Wahrnehmung visionärer Führung durch die Mitarbeiter in T1, Daten zu den beiden Mediatoren in T2 und schließlich die Wahrnehmung der Arbeitszufriedenheit durch die Mitarbeiter in T3 erhoben. Die Ergebnisse zeigen, dass Sinnhaftigkeit bei der Arbeit und Bindung an die Führungskraft positive intervenierende Rollen (in Form einer Kette) beim indirekten Einfluss von visionärer Führung auf die Wahrnehmung der Arbeitszufriedenheit der Mitarbeiter spielen. Diese Studie leistet einen Beitrag zur Literatur und Theorie, indem sie erstens das vorhandene Wissen über die Auswirkungen visionärer Führung auf die Mitarbeiter erweitert. Zweitens trägt sie zur Literatur über die Konstrukte Sinnhaftigkeit bei der Arbeit, Bindung an die Führungskraft und Arbeitszufriedenheit bei. Drittens beleuchtet sie den Mediationsmechanismus, der mit den Untersuchungsvariablen im Einklang mit dem vorgeschlagenen Modell steht. Viertens integriert sie zwei Theorien, die Job Demand Resource theory und die Broaden-and-Build theory, und liefert damit weitere Belege. Darüber hinaus liefert die Studie praktische Implikationen für Unternehmensleiter und HR-Praktiker. Insgesamt erörtert meine Studie das Potenzial von visionärem Führungsverhalten zur Verbesserung der Mitarbeiterergebnisse. Die Studie steht im Einklang mit früheren Forschungsarbeiten und beantwortet mehrere Forderungen nach weiterer Forschung zu visionärer Führung, Arbeitszufriedenheit und Vermittlungsmechanismen mit Sinnhaftigkeit bei der Arbeit und Bindung an die Führungskraft. KW - visionary leadership KW - meaningfulness at work KW - commitment to the leader KW - job satisfaction KW - visionäre Führung KW - Engagement für die Führungskraft KW - Arbeitszufriedenheit KW - Sinnhaftigkeit der Arbeit Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-572691 ER - TY - JOUR A1 - Lass, Sander A1 - Gronau, Norbert T1 - A factory operating system for extending existing factories to Industry 4.0 JF - Computers in industry : an international, application oriented research journal N2 - Cyber-physical systems (CPS) have shaped the discussion about Industry 4.0 (I4.0) for some time. To ensure the competitiveness of manufacturing enterprises the vision for the future figures out cyber-physical production systems (CPPS) as a core component of a modern factory. Adaptability and coping with complexity are (among others) potentials of this new generation of production management. The successful transformation of this theoretical construct into practical implementation can only take place with regard to the conditions characterizing the context of a factory. The subject of this contribution is a concept that takes up the brownfield character and describes a solution for extending existing (legacy) systems with CPS capabilities. KW - Factory operating system KW - CPPS KW - CPS KW - Decentralized production control KW - Industry 4.0 KW - retrofit Y1 - 2019 U6 - https://doi.org/10.1016/j.compind.2019.103128 SN - 0166-3615 SN - 1872-6194 VL - 115 PB - Elsevier CY - Amsterdam ER - TY - THES A1 - Hannes-Vincent, Krause T1 - Social networking site use and well-being - a nuanced understanding of a complex relationship N2 - Social Networking Sites (SNSs) are ubiquitous and attract an enormous chair of the digital population. Their functionalities allow users to connect and interact with others and weave complex social networks in which social information is continuously disseminated between users. Besides the social value SNSs are generating, they likewise attract companies and allow for new forms of marketing, thereby creating considerable economic value alike. However, as SNSs grew in popularity, so did concerns about the impact of their use on social interactions in general and the well-being of individual users in particular. While existing scientific evidence points to both risk as well as benefits of SNS use, research still lacks a profound understanding of which aspects of SNSs enable an impact on well-being and which psychological processes on the part of the users underly and explain this relationship. Therefore, this thesis is dedicated to an in-depth exploration of the relationship between SNS use and well-being and aims to answer how SNS use can impact well-being. Primarily, it focuses on the unique technological features that characterize SNSs and enable potential well- being alterations and on specific psychological processes on the part of the users, underlying and explaining the relationship. For this purpose, the thesis first introduces the concept of well- being. It continues by presenting SNSs’ unique technological features, divided into specifics of the content disseminated on SNSs and the network structure of SNSs. Further, the thesis introduces three classes of psychological processes assumed most relevant for the relationship between SNSs and well-being: other-focused, self-focused, and contrastive processes.. It is assumed that the course and quality of these common processes change in the SNS context and that a complex interplay between the unique features of SNSs and these processes determines how SNSs may ultimately affect users' well-being - both in positive and negative ways. The dissertation comprises seven research articles, each of which focusses on a particular set of SNS characteristics, their interplay with one or more of the proposed psychological processes, and ultimately the resulting effects on user well-being or its key resilience and risk factors. The seven articles investigate this relationship using different methodological approaches. Three articles are based on either systematic or narrative literature reviews, one applies an empirical cross-sectional research design, and three articles present an experimental investigation. Thematically, two articles revolve around SNS use’s effect on self-esteem. Three articles examine the specific role of the emotion of envy and its potential to establish and perpetuate a well-being-damaging social climate on SNSs. The two last articles of this thesis revolve around the established assumption that active and passive SNS use, as different modalities of SNS use, cause differential effects on users’ well-being due to the involvement of different psychological processes. The results of this thesis illustrate different ways how SNSs can affect users’ well-being. The results suggest that especially contrastive processes play a decisive role in explaining potential well-being risks for SNS users. Their interplay with certain SNS features seems to foster upward social comparisons and feelings of envy, potentially leading to a complex set of deleterious effects on users’ well-being. At the same time, the findings illuminate ways in which SNSs can benefit users and their self-esteem – especially when SNS use promotes self- focused and social-feedback-based other-focused processes. The thesis and their findings illustrate that the relationship between SNSs and well-being is complex. Therefore, a nuanced perspective, taking into consideration both the technological uniqueness of SNSs and the psychological processes they are enabling, is crucial to understand how these technologies affect their users in good and potentially harmful ways. On the one hand, the gathered insights contribute to research, providing novel insights into the complex relationship between SNS use and well-being. On the other hand, the results enable a focused and action-oriented derivation of recommendations for stakeholders such as individual users, policymakers, and platform providers. The findings of this thesis can help them to better combat SNS-related risks and ultimately ensure a healthy and sustainable environment for users - and thus also the economic values of SNSs - in the long term. KW - social networking sites KW - well-being KW - social media KW - self-esteem KW - envy Y1 - 2022 ER -