@masterthesis{Abendroth2019, type = {Bachelor Thesis}, author = {Abendroth, Adrian}, title = {Technology addiction scales in the areas of internet, smartphone, video games and social network sites}, doi = {10.25932/publishup-43555}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-435559}, school = {Universit{\"a}t Potsdam}, pages = {VII, 52}, year = {2019}, abstract = {As digital media infiltrate an increasingly greater proportion of our lives, concern about the possibility of various forms of technology addictions has emerged. For technology addiction, researchers have developed a variety of self-reported scales in areas such as Internet, smartphones, videogames, social network sites (SNS) or television. However, no uniform criteria or definition exists for technology addiction. Utilized dimensions of technology addiction, to measure specific outcomes, lack a conceptual standard. Therefore, linkages between technology areas dimensions have not been examined in a broader way by the research community, in order to develop a uniform technology addiction scale. In this regard, firstly, a theoretical model was developed in order to extract common technology dimensions. Secondly, a systematic literature review in the areas of Internet, smartphone, video games and SNS was conducted in order to extract the dimensions used. To identify relevant studies, nine databases (GoogleScholar, ScienceDirect, PubMed, EmeraldInsight, Wiley, SpringerLink, ACM, iEEE and JSTOR) were searched, producing 4698 results, and 50 studies met the inclusion criteria. Thirdly, the developed theoretical model was utilized in order to determine the dimension in each of the identified scales. Based on analysis of the dimensional distributions, the findings suggest that there are common dimensions across areas of technology such as "compulsive use" and "negative outcomes" but also differences in dimensions across areas such as "social comfort" and "mood regulation", which are more used in the area of SNS. Moreover, new dimensions such as "cognitive absorption" or "utility and function loss" for technology addiction were extracted, which should be considered as these have not yet been researched in a broader way. In addition, no gold standard for the conceptual criteria or definition for technology addiction has been developed yet.}, language = {en} } @techreport{AudretschHafensteinKritikosetal.2019, type = {Working Paper}, author = {Audretsch, David B. and Hafenstein, Marian and Kritikos, Alexander and Schiersch, Alexander}, title = {Firm Size and Innovation in the Service Sector}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {4}, issn = {2628-653X}, doi = {10.25932/publishup-42767}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-427670}, pages = {46}, year = {2019}, abstract = {A rich literature links knowledge inputs with innovative outputs. However, most of what is known is restricted to manufacturing. This paper analyzes whether the three aspects involving innovative activity - R\&D; innovative output; and productivity - hold for knowledge intensive services. Combining the models of Crepon et al. (1998) and of Ackerberg et al. (2015), allows for causal interpretation of the relationship between innovation output and labor productivity. We find that knowledge intensive services benefit from innovation activities in the sense that these activities causally increase their labor productivity. Moreover, the firm size advantage found for manufacturing in previous studies nearly disappears for knowledge intensive services.}, language = {en} } @phdthesis{Bieri2019, author = {Bieri, Pascal}, title = {Topmanager im Kreuzfeuer ihrer Dilemmata}, doi = {10.25932/publishup-44106}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-441062}, school = {Universit{\"a}t Potsdam}, pages = {XIII, 301}, year = {2019}, abstract = {Die vorliegende Forschungsarbeit untersucht den Umgang mit Dilemmata von Topmanagern. Dilemmata sind ein allt{\"a}gliches Gesch{\"a}ft im Topmanagement. Die entsprechenden Akteure sind daher immer wieder mit diesen konfrontiert und mit ihnen umzugehen, geh{\"o}rt gewissermaßen zu ihrer Berufsbeschreibung. Hinzu kommen Dilemmata im nicht direkt gesch{\"a}ftlichen Bereich, wie zum Beispiel jene zwischen Familien- und Arbeitszeit. Doch stellt dieses Feld ein kaum untersuchtes Forschungsgebiet dar. W{\"a}hrend Dilemmata in anderen Bereichen eine zunehmende Aufmerksamkeit erfuhren, wurden deren Besonderheiten im Topmanagement genauso wenig differenziert betrachtet wie zugeh{\"o}rige Umgangsweisen. Theorie und Praxis stellen bez{\"u}glich Dilemmata von Topmanagern vor allem einen Gegensatz dar, beziehungsweise fehlt es an einer theoretischen Fundierung der Empirie. Diesem Umstand wird mittels dieser Studie begegnet. Auf der Grundlage einer differenzierten und breiten Erfassung von Theorien zu Dilemmata, so diese auch noch nicht auf Topmanager bezogen wurden, und einer empirischen Erhebung, die im Mittelpunkt dieser Arbeit stehen, soll das Feld Dilemmata von Topmanagern der Forschung ge{\"o}ffnet werden. Empirische Grundlage sind vor allem narrative Interviews mit Topmanagern {\"u}ber ihre Dilemmata-Wahrnehmung, ausgemachte Ursachen, Umgangsweisen und Resultate. Dies erlaubt es, Topmanagertypen sowie Dilemmata-Arten, mit denen sie konfrontiert sind oder waren, analytisch herauszuarbeiten. Angesichts der Praxisrelevanz von Dilemmata von Topmanagern wird jedoch nicht nur ein theoretisches Modell zu dieser Thematik erarbeitet, es werden auch Reflexionen auf die Praxis in Form von Handlungsempfehlungen vorgenommen. Schließlich gilt es, die allgemeine Theorie zu Dilemmata, ohne konkreten Bezug zu Topmanagern, mit den theoretischen Erkenntnissen dieser Studie auf empirischer Basis zu kontrastieren. Dabei wird im Rahmen der empirischen Erfassung und Auswertung dem Ansatz der Grounded-Theory-Methodologie gefolgt.}, language = {de} } @techreport{BorckSchrauth2019, type = {Working Paper}, author = {Borck, Rainald and Schrauth, Philipp}, title = {Population density and urban air quality}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {8}, issn = {2628-653X}, doi = {10.25932/publishup-42771}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-427719}, pages = {53}, year = {2019}, abstract = {We use panel data from Germany to analyze the effect of population density on urban air pollution (nitrogen oxides, particulate matter and ozone). 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. Our preferred estimates imply that a one-standard deviation increase in population density increases air pollution by 3-12\%.}, language = {en} } @techreport{Bruttel2019, type = {Working Paper}, author = {Bruttel, Lisa Verena}, title = {Is There a Loyalty-Enhancing Effect of Retroactive Price-Reduction Schemes?}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {5}, issn = {2628-653X}, doi = {10.25932/publishup-42768}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-427688}, pages = {25}, year = {2019}, abstract = {This paper presents an experiment on the effect of retroactive price-reduction schemes on buyers' repeated purchase decisions. Such schemes promise buyers a reduced price for all units that are bought in a certain time frame if the total quantity that is purchased passes a given threshold. This study finds a loyalty-enhancing effect of retroactive price-reduction schemes only if the buyers ex-ante expected that entering into the scheme would maximize their monetary gain, but later learn that they should leave the scheme. Furthermore, the effect crucially hinges on the framing of the price reduction.}, language = {en} } @techreport{BruttelFelgendreherGuethetal.2019, type = {Working Paper}, author = {Bruttel, Lisa Verena and Felgendreher, Simon and G{\"u}th, Werner and Hertwig, Ralph}, title = {Strategic ignorance in repeated prisoners' dilemma experiments and its effects on the dynamics of voluntary cooperation}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {10}, issn = {2628-653X}, doi = {10.25932/publishup-43188}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-431881}, pages = {30}, year = {2019}, abstract = {Being ignorant of key aspects of a strategic interaction can represent an advantage rather than a handicap. We study one particular context in which ignorance can be beneficial: iterated strategic interactions in which voluntary cooperation may be sustained into the final round if players voluntarily forego knowledge about the time horizon. We experimentally examine this option to remain ignorant about the time horizon in a finitely repeated two-person prisoners' dilemma game. We confirm that pairs without horizon knowledge avoid the drop in cooperation that otherwise occurs toward the end of the game. However, this effect is superposed by cooperation declining more rapidly in pairs without horizon knowledge during the middle phase of the game, especially if players do not know that the other player also wanted to remain ignorant of the time horizon.}, language = {en} } @techreport{BruttelNithammerStolley2019, type = {Working Paper}, author = {Bruttel, Lisa Verena and Nithammer, Juri and Stolley, Florian}, title = {"Thanks in Advance"}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {7}, issn = {2628-653X}, doi = {10.25932/publishup-42770}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-427706}, pages = {18}, year = {2019}, abstract = {This paper studies the effect of the commonly used phrase "thanks in advance" on compliance with a small request. In a controlled laboratory experiment we ask participants to give a detailed answer to an open question. The treatment variable is whether or not they see the phrase "thanks in advance." Our participants react to the treatment by exerting less effort in answering the request even though they perceive the phrase as polite.}, language = {en} } @techreport{CaliendoFossenKritikos2019, type = {Working Paper}, author = {Caliendo, Marco and Fossen, Frank M. and Kritikos, Alexander}, title = {What Makes an Employer?}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {13}, issn = {2628-653X}, doi = {10.25932/publishup-43736}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-437360}, year = {2019}, abstract = {As the policy debate on entrepreneurship increasingly centers on firm growth in terms of job creation, it is important to better understand which variables influence the first hiring decision and which ones influence the subsequent survival as an employer. Using the German Socio-economic Panel (SOEP), we analyze what role individual characteristics of entrepreneurs play in sustainable job creation. While human and social capital variables positively influence the hiring decision and the survival as an employer in the same direction, we show that none of the personality traits affect the two outcomes in the same way. Some traits are only relevant for survival as an employer but do not influence the hiring decision, other traits even unfold a revolving door effect, in the sense that employers tend to fail due to the same characteristics that positively influenced their hiring decision.}, language = {en} } @techreport{CaliendoGoethnerWeissenberger2019, type = {Working Paper}, author = {Caliendo, Marco and Goethner, Maximilian and Weißenberger, Martin}, title = {Entrepreneurial Persistence Beyond Survival: Measurement and Determinants}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {11}, issn = {2628-653X}, doi = {10.25932/publishup-43456}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-434563}, year = {2019}, abstract = {Entrepreneurial persistence is demonstrated by an entrepreneur's continued positive maintenance of entrepreneurial motivation and constantly-renewed active engagement in a new business venture despite counter forces or enticing alternatives. It is thus a crucial factor for entrepreneurs when pursuing and exploiting their business opportunities and to realize potential economic gains and benefits. Using rich data on a representative sample of German business founders, we investigate the determinants of entrepreneurial persistence. Next to observed survival we also construct a hybrid persistence measure capturing also the motivational dimension of persistence. We analyze the influence of individual-level (human capital and personality) and business-related characteristics on both measures as well as their relative importance. We find that the two indicators emphasize different aspects of persistence. For the survival indicator, the predictive power is concentrated in business characteristics and human capital, while for hybrid persistence, the dominant factors are business characteristics and personality. Finally, we show that results are heterogeneous across subgroups. In particular, formerly-unemployed founders do not differ in survival chances, but they are more likely to lack a high psychological commitment to their business ventures.}, language = {en} } @techreport{CaliendoKuennWeissenberger2019, type = {Working Paper}, author = {Caliendo, Marco and K{\"u}nn, Steffen and Weißenberger, Martin}, title = {Catching up or Lagging Behind?}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {12}, issn = {2628-653X}, doi = {10.25932/publishup-43701}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-437012}, year = {2019}, abstract = {From an active labor market policy perspective, start-up subsidies for unemployed individuals are very effective in improving long-term labor market outcomes for participants. From a business perspective, however, the assessment of these public programs is less clear since they might attract individuals with low entrepreneurial abilities and produce businesses with low survival rates and little contribution to job creation, economic growth, and innovation. In this paper, we use a rich data set to compare participants of a German start-up subsidy program for unemployed individuals to a group of regular founders who started from nonunemployment and did not receive the subsidy. The data allows us to analyze their business performance up until 40 months after business formation. We find that formerly subsidized founders lag behind not only in survival and job creation, but especially also in innovation activities. The gaps in these business outcomes are relatively constant or even widening over time. Hence, we do not see any indication of catching up in the longer run. While the gap in survival can be entirely explained by initial differences in observable start-up characteristics, the gap in business development remains and seems to be the result of restricted access to capital as well as differential business strategies and dynamics. Considering these conflicting results for the assessment of the subsidy program from an ALMP and business perspective, policy makers need to carefully weigh the costs and benefits of such a strategy to find the right policy mix.}, language = {en} } @techreport{CaliendoSchroederWittbrodt2019, type = {Working Paper}, author = {Caliendo, Marco and Schr{\"o}der, Carsten and Wittbrodt, Linda}, title = {The Causal Effects of the Minimum Wage Introduction in Germany}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {1}, issn = {2628-653X}, doi = {10.25932/publishup-42692}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-426929}, year = {2019}, abstract = {In 2015, Germany introduced a statutory hourly minimum wage that was not only universally binding but also set at a relatively high level. We discuss the short-run effects of this new minimum wage on a wide set of socio-economic outcomes, such as employment and working hours, earnings and wage inequality, dependent and self-employment, as well as reservation wages and satisfaction. We also discuss difficulties in the implementation of the minimum wage and the measurement of its effects related to non-compliance and suitability of data sources. Two years after the minimum wage introduction, the following conclusions can be drawn: while hourly wages increased for low-wage earners, some small negative employment effects are also identifiable. The effects on aspired goals, such as poverty and inequality reduction, have not materialized in the short run. Instead, a tendency to reduce working hours is found, which alleviates the desired positive impact on monthly income. Additionally, the level of non-compliance was substantial in the short run, thus drawing attention to problems when implementing such a wide-reaching policy.}, language = {en} } @techreport{CaliendoTuebbicke2019, type = {Working Paper}, author = {Caliendo, Marco and T{\"u}bbicke, Stefan}, title = {New Evidence on Long-Term Effects of Start-Up Subsidies}, series = {CEPA Discussion Papers}, journal = {CEPA Discussion Papers}, number = {6}, issn = {2628-653X}, doi = {10.25932/publishup-42679}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-426798}, pages = {41}, year = {2019}, abstract = {The German start-up subsidy (SUS) program for the unemployed has recently undergone a major make-over, altering its institutional setup, adding an additional layer of selection and leading to ambiguous predictions of the program's effectiveness. Using propensity score matching (PSM) as our main empirical approach, we provide estimates of long-term effects of the post-reform subsidy on individual employment prospects and labor market earnings up to 40 months after entering the program. Our results suggest large and persistent long-term effects of the subsidy on employment probabilities and net earned income. These effects are larger than what was estimated for the pre-reform program. Extensive sensitivity analyses within the standard PSM framework reveal that the results are robust to different choices regarding the implementation of the weighting procedure and also with respect to deviations from the conditional independence assumption. As a further assessment of the results' sensitivity, we go beyond the standard selection-on-observables approach and employ an instrumental variable setup using regional variation in the likelihood of receiving treatment. Here, we exploit the fact that the reform increased the discretionary power of local employment agencies in allocating active labor market policy funds, allowing us to obtain a measure of local preferences for SUS as the program of choice. The results based on this approach give rise to similar estimates. Thus, our results indicating that SUS are still an effective active labor market program after the reform do not appear to be driven by "hidden bias".}, language = {en} } @phdthesis{Doering2019, author = {D{\"o}ring, Matthias}, title = {The public encounter}, doi = {10.25932/publishup-50227}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-502276}, school = {Universit{\"a}t Potsdam}, pages = {xi, 115}, year = {2019}, abstract = {This thesis puts the citizen-state interaction at its center. Building on a comprehensive model incorporating various perspectives on this interaction, I derive selected research gaps. The three articles, comprising this thesis, tackle these gaps. A focal role plays the citizens' administrative literacy, the relevant competences and knowledge necessary to successfully interact with public organizations. The first article elaborates on the different dimensions of administrative literacy and develops a survey instrument to assess these. The second study shows that public employees change their behavior according to the competences that citizens display during public encounters. They treat citizens preferentially that are well prepared and able to persuade them of their application's potential. Thereby, they signal a higher success potential for bureaucratic success criteria which leads to the employees' cream-skimming behavior. The third article examines the dynamics of employees' communication strategies when recovering from a service failure. The study finds that different explanation strategies yield different effects on the client's frustration. While accepting the responsibility and explaining the reasons for a failure alleviates the frustration and anger, refusing the responsibility leads to no or even reinforcing effects on the client's frustration. The results emphasize the different dynamics that characterize the nature of citizen-state interactions and how they establish their short- and long-term outcomes.}, language = {en} } @misc{HeuerOrland2019, author = {Heuer, Leonie and Orland, Andreas}, title = {Cooperation in the Prisoner's Dilemma}, series = {Postprints der Universit{\"a}t Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe}, number = {107}, issn = {1867-5808}, doi = {10.25932/publishup-43592}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-435929}, pages = {9}, year = {2019}, abstract = {Cooperation is — despite not being predicted by game theory — a widely documented aspect of human behaviour in Prisoner's Dilemma (PD) situations. This article presents a comparison between subjects restricted to playing pure strategies and subjects allowed to play mixed strategies in a one-shot symmetric PD laboratory experiment. Subjects interact with 10 other subjects and take their decisions all at once. Because subjects in the mixed-strategy treatment group are allowed to condition their level of cooperation more precisely on their beliefs about their counterparts' level of cooperation, we predicted the cooperation rate in the mixed-strategy treatment group to be higher than in the pure-strategy control group. The results of our experiment reject our prediction: even after controlling for beliefs about the other subjects' level of cooperation, we find that cooperation in the mixed-strategy group is lower than in the pure-strategy group. We also find, however, that subjects in the mixedstrategy group condition their cooperative behaviour more closely on their beliefs than in the pure-strategy group. In the mixed-strategy group, most subjects choose intermediate levels of cooperation.}, language = {en} } @techreport{SultanowKochCox2019, author = {Sultanow, Eldar and Koch, Christian and Cox, Sean}, title = {Collatz Sequences in the Light of Graph Theory}, edition = {2nd version}, doi = {10.25932/publishup-43741}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-437416}, pages = {21}, year = {2019}, abstract = {The Collatz conjecture is a number theoretical problem, which has puzzled countless researchers using myriad approaches. Presently, there are scarcely any methodologies to describe and treat the problem from the perspective of the Algebraic Theory of Automata. Such an approach is promising with respect to facilitating the comprehension of the Collatz sequence's "mechanics". The systematic technique of a state machine is both simpler and can fully be described by the use of algebraic means. The current gap in research forms the motivation behind the present contribution. The present authors are convinced that exploring the Collatz conjecture in an algebraic manner, relying on findings and fundamentals of Graph Theory and Automata Theory, will simplify the problem as a whole.}, language = {en} } @techreport{SultanowKochCox2019, author = {Sultanow, Eldar and Koch, Christian and Cox, Sean}, title = {Collatz Sequences in the Light of Graph Theory}, doi = {10.25932/publishup-43008}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-430089}, pages = {15}, year = {2019}, abstract = {The Collatz conjecture is a number theoretical problem, which has puzzled countless researchers using myriad approaches. Presently, there are scarcely any methodologies to describe and treat the problem from the perspective of the Algebraic Theory of Automata. Such an approach is promising with respect to facilitating the comprehension of the Collatz sequences "mechanics". The systematic technique of a state machine is both simpler and can fully be described by the use of algebraic means. The current gap in research forms the motivation behind the present contribution. The present authors are convinced that exploring the Collatz conjecture in an algebraic manner, relying on findings and fundamentals of Graph Theory and Automata Theory, will simplify the problem as a whole.}, language = {en} } @misc{Tiberius2019, author = {Tiberius, Victor}, title = {Scenarios in the strategy process}, number = {119}, issn = {1867-5808}, doi = {10.25932/publishup-44290}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-442907}, pages = {16}, year = {2019}, abstract = {This paper challenges the solely rational view of the scenario technique as a strategy and foresight tool designed to cope with uncertainty by considering multiple possible future states. The paper employs an affordance-based view that allows for the identification and structuring of hidden, emergent attributes of the scenario technique beyond the intended ones. The suggested framework distinguishes between affordances (1) that are intended by the organization and relate to its goals, (2) that emergently generate organizational benefits, and (3) that do not relate to organizational but individual interests. Also, constraints in the use of scenarios are discussed. Affordance theory's specific lens shows that the emergence of such attributes depends on the users' specific intentions.}, language = {en} } @misc{TiberiusLisiecki2019, author = {Tiberius, Victor and Lisiecki, Laura}, title = {Stock Price Forecast Accuracy and Recommendation Profitability of Financial Magazines}, series = {Postprints der Universit{\"a}t Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe}, number = {118}, issn = {1867-5808}, doi = {10.25932/publishup-44108}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-441081}, pages = {10}, year = {2019}, abstract = {In this study, we analyze the forecast accuracy and profitability of buy recommendations published in five major German financial magazines for private households based on fundamental analysis. The results show a high average forecast accuracy but with a very high standard deviation, which indicates poor forecast accuracy with regard to individual stocks. The recommendation profitability slightly exceeds the performance of the MSCI World index. Considering the involved risk, which is represented by a high standard deviation, the excess returns appear to be insufficient.}, language = {en} } @misc{Victor2019, type = {Master Thesis}, author = {Victor, Vincent}, title = {The Role of Bargaining Power}, series = {Potsdam Economic Papers}, journal = {Potsdam Economic Papers}, number = {6}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-449-4}, issn = {2197-8069}, doi = {10.25932/publishup-42068}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-420689}, school = {Universit{\"a}t Potsdam}, year = {2019}, abstract = {Neoclassical theory omits the role of bargaining power in the determination of wages. As a result, the importance of changes in the bargaining position for the development of income shares in the last decades is underestimated. This paper presents a theoretical argument why collective bargaining power is a main determinant of workers' share of income and how its decline contributed to the severe changes in the distribution of income since the 1980s. In order to confirm this hypothesis, a panel data regression analysis is performed that suggests that unions significantly influence the distribution of income in developed countries.}, language = {en} } @misc{WeberTiefenbacherGronau2019, author = {Weber, Edzard and Tiefenbacher, Anselm and Gronau, Norbert}, title = {Need for standardization and systematization of test data for job-shop scheduling}, series = {Postprints der Universit{\"a}t Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe}, number = {134}, issn = {1867-5808}, doi = {10.25932/publishup-47222}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-472229}, pages = {23}, year = {2019}, abstract = {The development of new and better optimization and approximation methods for Job Shop Scheduling Problems (JSP) uses simulations to compare their performance. The test data required for this has an uncertain influence on the simulation results, because the feasable search space can be changed drastically by small variations of the initial problem model. Methods could benefit from this to varying degrees. This speaks in favor of defining standardized and reusable test data for JSP problem classes, which in turn requires a systematic describability of the test data in order to be able to compile problem adequate data sets. This article looks at the test data used for comparing methods by literature review. It also shows how and why the differences in test data have to be taken into account. From this, corresponding challenges are derived which the management of test data must face in the context of JSP research. Keywords}, language = {en} } @misc{WewerFischer2019, author = {Wewer, G{\"o}ttrik and Fischer, Caroline}, title = {Wissensmanagement}, series = {Postprints der Universit{\"a}t Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe}, number = {139}, doi = {10.25932/publishup-50534}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-505341}, pages = {1 -- 12}, year = {2019}, abstract = {Wissen ist f{\"u}r die Bew{\"a}ltigung der Verwaltungsaufgaben eine wichtige Ressource. Das wirft die Frage auf, wie das notwendige Wissen erzeugt, bewahrt, verteilt und auffindbar gemacht werden kann. Ein solches Wissensmanagement kann die Arbeit der Beh{\"o}rden qualitativ verbessern und effizienter machen. Dennoch wird Wissen in der Verwaltungspraxis bisher nur unzureichend gemanagt. Ein systematisches Wissensmanagement erfordert personelle, finanzielle und technische Ressourcen. Sind diese nicht vorhanden, k{\"o}nnen Verwaltungen zun{\"a}chst auf einzelne Instrumente des Wissensmanagements zur{\"u}ckgreifen, um ihre Arbeit mit begrenztem Aufwand zu verbessern.}, language = {de} }