We study how restrictive immigration policies and the unexpected loss of peers affect the performance of skilled migrants, exploiting the unexpected increased denials of H-1B visa extensions in the United States beginning in 2017. We find that employees who lost peers of the same ethnic...

Wie gelingt es, in Quartieren und Nachbarschaften unterschiedliche Menschen und Gruppen in Kontakt zu bringen? Die Studie gibt Einblick in die Begegnungsarbeit vor Ort - in Quartieren und Nachbarschaften, die durch eine heterogene Bevölkerungsstruktur gekennzeichnet sind. Im Mittelpunkt der...

Social interactions determine many economic behaviors, but information on social ties does not exist in most publicly available and widely used datasets. We present results on the identification of social networks from observational panel data that contains no information on social ties between...

Lending to the poor is expensive due to high screening, monitoring, and enforcement costs. Group lending advocates believe lenders overcome this by harnessing social connections. Using data from FINCA-Peru, I exploit a quasi-random group formation process to find evidence of peers successfully...

Using the relational dyad as unit of analysis this study examines the effects of perceived influence and friendship ties on the formation and maintenance of cooperative relationships between corporate top executives. Specifically, it is argued that perceived influence as well as friendship ties...

Consider a situation where person A undertakes a costly action that benefits person B. This behavior seems altruistic. However, if A expects a reward in return from B, then A's action may be motivated by the expected rewards rather than by pure altruism. The question we address in this...

This paper analyzes the welfare effects of a public smoking ban in bars. We construct a model that captures crucial features of bar life: competing bars, social interaction, and heterogenous preferences for a smoking ban. Smokers and non-smokers simultaneously choose a bar given their...

We systematically explore decision situations in which a decision maker bears responsibility for somebody else's outcomes as well as for her own in situations of payoff equality. In the gain domain we confirm the intuition that being responsible for somebody else's payoffs increases risk...

Für die sogenannte Deutschland AG war eine enge Verflechtung von Personen in Aufsichtsräten und Vorständen typisch. Diese Strukturen haben sich über die Zeit kaum geändert. Dies zeigen die Autoren mit Hilfe der Netzwerkanalyse - einer Methode, die aus den Naturwissenschaften kommend immer...

This paper is the first to analyze the impact of family background on permanent earnings based on sibling correlations in Germany and to provide a cross-country comparison of Germany, Denmark, and USA. The main findings are that family and community background has a stronger influence on...