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Urban pollution
(2022)
We use worldwide satellite data to analyse how population size and density affect urban pollution. We find that density significantly increases pollution exposure. Looking only at urban areas, we find that population size affects exposure more than density. Moreover, the effect is driven mostly by population commuting to core cities rather than the core city population itself. We analyse heterogeneity by geography and income levels. By and large, the influence of population on pollution is greatest in Asia and middle-income countries. A counterfactual simulation shows that PM2.5 exposure would fall by up to 36% and NO2 exposure up to 53% if within countries population size were equalized across all cities.
The paper describes the exchange program in between the University of Wisconsin/ Milwaukee and the University of Potsdam in the field of economics. It discusses in detail the development of the program, including the problems and challenges. Additionally a brief description of the curriculum is presented. Then the future possibilities of the Transatlantic Degree Program (TDP) are discussed and the influences and problems of the Bologna process analysed.
This paper – which is based on the Thomas Franck Lecture held by the author at Humboldt University Berlin on 13 May 2019 – argues that the most likely development of international to be expected will be the coexistence of two “legal worlds”. On the one hand, an inter-State law brutally regulating political relations between human groups whitewashed by nationalism; on the other hand, a transnational or “a-national” law regulating economic relations between private as well as public interests. Further, the paper argues that there are two obvious victims – of very different nature – of this foreseeable evolution: the human being on the one hand, the certainty and effectiveness of the rule of law itself on the other hand.
In der Stadtökonomie ergeben sich die Formen der sektoralen und der ringförmigen Stadtstruktur als mögliche Ergebnisse der Segregation von demographisch verschiedenen Haushalten mit Nachbarschaftsexternalitäten. Rose-Ackerman [1973] postuliert, dass die Ringstruktur die Folge der Minimierung der Grenzlänge zwischen schwarzen und weißen Haushalten sei. Diese Annahme wird in der New-Urban-Economics-Literatur recht häufig übernommen. In diesem Beitrag wird auf der Grundlage eines Alonso-Mills-Muth-Modells gezeigt, dass Rose-Ackermans Hypothese nur in Situationen zulässig ist, in denen eine Gruppe deutlich in der Minderheit ist. In der Mehrheit der möglichen Verhältnisse der Gruppengrößen ist eine sektorale Stadtstruktur vorteilhaft. Werden anstelle der Grenzlängen die an der Grenze anfallenden negativen Externalitäten verglichen, nimmt der Bereich der Gruppengrößenverhältnisse, in denen die Sektorstruktur vorteilhaft ist, noch zu.
Inhalt 1. Einleitung und Begriffsklärung 2. Die Neue Institutionenökonomik als Grundlage der Analyse 3. Positive Theorie der Regulierung 3.1. Das Entscheidungsverhalten der Politiker 3.2. Der Einfluß von Interessengruppen 3.3. Der Einfluß der Bürokratie 3.4. Regulierungen zwischen Stabilität und Instabilität – eine dynamischeBetrachtung 4. Positive Analyse von Deregulierungen 4.1. Darstellung positiver Deregulierungsansätze 4.1.1. BECKERs Modell des Interessengruppenwettbewerbs 4.1.2. PELTZMANs Deregulierungsansatz 4.1.3. NORTHs Theorie des institutionellen Wandels 4.2. Determinanten von Deregulierungsprozessen 4.2.1. Notwendige und hinreichende Voraussetzungen für Deregulierungen 4.2.2. Technologische Faktoren 4.2.2.1. Technologische Neuerungen und Deregulierungen(dargestellt am Beispiel der Deregulierung des US-amerikanischenFerngesprächsbereichs) 4.2.2.2. Politökonomische Analyse 4.2.3. Ökonomische Faktoren 4.2.3.1. Globalisierung und Systemwettbewerb 4.2.3.2. Politökonomische Analyse 4.2.4. Politische Faktoren 4.2.4.1. Europäische Integration und Deregulierungen 4.2.4.2. Politökonomische Analyse 4.2.4.2.1. Die Europäische Kommission 4.2.4.2.2. Der Rat der EU (Ministerrat) 4.2.4.2.3. Das Europäische Parlament 4.2.4.2.4. Nationale Regierungen und Kompetenzverlagerungen 4.2.4.2.5. Der Europäische Gerichtshof 4.2.4.2.6. Organisierte Interessen 4.2.4.2.7. Fazit 5. Abschließende Bemerkungen
Using novel longitudinal data, this paper studies the short- and medium-term effects of Russia's invasion of Ukraine on February 24, 2022 on social trust of adolescents in Germany. Comparing adolescents who responded to our survey shortly before the start of the war with those who responded shortly after the conflict began and applying difference-in-differences (DiD) models over time, we find a significant decline in the outcome after the war started. These findings provide new evidence on how armed conflicts influence social trust and well-being among young people in a country not directly involved in the war.
Weathering the storm?
(2023)
Democratization scholars are currently debating if we are indeed witnessing a third wave of autocratization. While this has led to an extensive debate about the future of the liberal international order, we still know relatively little about the consequences of autocratization for international organizations (IOs). In this article, we explore to what extent autocratization has led to changes in the composition of IO membership. We propose three different ways of conceptualizing autocratization of IO membership. We argue that we should move away from a dichotomous understanding of regime type and regime change, but rather focus on composition of subregime types to understand current developments. We build on updated membership data for 73 IOs through 2020 to map membership configurations based on the V-Dem Electoral Democracy Index. Contrary to current debates on the crisis of the liberal order, we find that many IOs are not (yet) affected by broad autocratization of their membership that would endanger democratic majorities or overall democratic densities. However, we also observe the disappearance of formerly homogenous democratic clubs due to democratic backsliding in a number of European and Latin American IO member states, as well as a return of autocratic clubs in Southeast Asia and Southern Africa. These findings have important implications for the broader research agenda on international democracy promotion and human right protection as well as the study of legitimacy and the effectiveness of international organizations.
The COVID-19 pandemic created the largest experiment in working from home. We study how persistent telework may change energy and transport consumption and costs in Germany to assess the distributional and environmental implications when working from home will stick. Based on data from the German Microcensus and available classifications of working-from-home feasibility for different occupations, we calculate the change in energy consumption and travel to work when 15% of employees work full time from home. Our findings suggest that telework translates into an annual increase in heating energy expenditure of 110 euros per worker and a decrease in transport expenditure of 840 euros per worker. All income groups would gain from telework but high-income workers gain twice as much as low-income workers. The value of time saving is between 1.3 and 6 times greater than the savings from reduced travel costs and almost 9 times higher for high-income workers than low-income workers. The direct effects on CO₂ emissions due to reduced car commuting amount to 4.5 millions tons of CO₂, representing around 3 percent of carbon emissions in the transport sector.
What is it good for?
(2023)
Military conflicts and wars affect a country’s development in various dimensions. Rising inflation rates are a potentially important economic effect associated with conflict. High inflation can undermine investment, weigh on private consumption, and threaten macroeconomic stability. Furthermore, these effects are not necessarily restricted to the locality of the conflict, but can also spill over to other countries. Therefore, to understand how conflict affects the economy and to make a more comprehensive assessment of the costs of armed conflict, it is important to take inflationary effects into account. To disentangle the conflict-inflation-nexus and to quantify this relationship, we conduct a panel analysis for 175 countries over the period 1950–2019. To capture indirect inflationary effects, we construct a distance based spillover index. In general, the results of our analysis confirm a statistically significant positive direct association between conflicts and inflation rates. This finding is robust across various model specifications. Moreover, our results indicate that conflict induced inflation is not solely driven by increasing money supply. Furthermore, we document a statistically significant positive indirect association between conflicts and inflation rates in uninvolved countries.
What Makes an Employer?
(2019)
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.
Kurz vor ihrem sechzigsten Geburtstag ist die europäische Union mit inneren und äußeren Herausforderungen konfrontiert und befindet sich in einer tiefen Krise. Am 1. März 2017 legte Kommissionspräsident Juncker das „Weißbuch über die Zukunft der Europäischen Union“ vor, in dem er verschiedene Szenarien darlegt und zur Diskussion über die anste-henden Entscheidungen einlädt. Diese Papier versteht sich als ein solcher Diskussionsbei-trag.
Wie verhandelt die Praxis?
(2015)
We analyze the impact of women’s managerial representation on the gender pay gap among employees on the establishment level using German Linked-Employer-Employee-Data from the years 2004 to 2018. For identification of a causal effect we employ a panel model with establishment fixed effects and industry-specific time dummies. Our results show that a higher share of women in management significantly reduces the gender pay gap within the firm. An increase in the share of women in first-level management e.g. from zero to above 33 percent decreases the adjusted gender pay gap from a baseline of 15 percent by 1.2 percentage points, i.e. to roughly 14 percent. The effect is stronger for women in second-level than first-level management, indicating that women managers with closer interactions with their subordinates have a higher impact on the gender pay gap than women on higher management levels. The results are similar for East and West Germany, despite the lower gender pay gap and more gender egalitarian social norms in East Germany. From a policy perspective, we conclude that increasing the number of women in management positions has the potential to reduce the gender pay gap to a limited extent. However, further policy measures will be needed in order to fully close the gender gap in pay.
Leveraging two cohort-specific pension reforms, this paper estimates the forward-looking effects of an exogenous increase in the working horizon on (un)employment behaviour for individuals with a long remaining statutory working life. Using difference-in-differences and regression discontinuity approaches based on administrative and survey data, I show that a longer legal working horizon increases individuals’ subjective expectations about the length of their work life, raises the probability of employment, decreases the probability of unemployment, and increases the intensity of job search among the unemployed. Heterogeneity analyses show that the demonstrated employment effects are strongest for women and in occupations with comparatively low physical intensity, i.e., occupations that can be performed at older ages.
Die vorliegende Publikation umfasst einen Teil der Dissertation „Wortstellungsvariation aus informationsstruktureller Perspektive. Eine Untersuchung der linken Satzperipherie im gesprochenen Deutsch“ von Sören Schalowski. In diesen Kapiteln wird aus synchroner Perspektive auf die Wortstellungsvariation in der linken Satzperipherie, also die Besetzungs- und Linearisierungsvarianten der syntaktischen Domäne vor dem finiten Verb, genauer eingegangen. Dabei werden die für das Standarddeutsche bekannten und in der Literatur diskutierten (oberflächlichen)
Abweichungen von der V2-Stellung in Aussagesätzen des Deutschen genauer diskutiert.
Against the background of the increasingly discussed “Linguistic Saving Hypothesis” (Chen, 2013), I studied whether the targeted use of a present tense (close tense) and a future tense (distant tense) within the same language have an impact on intertemporal decision-making. In a monetarily incentivized laboratory experiment in Germany, I implemented two different treatments on intertemporal choices. The treatments differed in the tense in which I referred to future rewards. My results show that individuals prefer to a greater extent rewards which are associated with a present tense (close tense). This result is in line with my prediction and the first empirical support for the Linguistic Saving Hypothesis within one language. However, this result holds exclusively for males. Females seem to be unaffected by the linguistic manipulation. I discuss my findings in the context of “gender-as-culture” as well as their potential policy-implications.
Dieses Papier thematisiert die völkerstrafrechtliche Einordnung rein störender, also nicht zerstörender Cyberoperationen. Nach der erforderlichen Begriffsklärung werden die einzelnen Fragen der Anwendbarkeit des Völkerstrafrechts erörtert und geprüft, welche Tatbestände durch solche Aktionen verwirklicht werden können.