In real world bargaining the distribution of seats or voting weights often does not accurately reflect real power. Game-theory predictions are insensitive to nominal differences. We refer to the converse idea that nominal differences matter as power illusion. We experimentally study the...

In many bargaining situations, the distribution of seats or voting weights does not accurately reflect bargaining power. Maaser, Paetzel and Traub (Games and Economic Behavior, 2019) conducted an experiment to investigate the effect of such nominal power differences in the classic Baron-Ferejohn...

We study loyalty in groups that are exogenously assigned based on members' performances in a task. We observe that in-group bias is strong and significant among subjects who score high in performance, and that it is weak and insignificant among those who score low. This asymmetric pattern is...

We experimentally investigate a finitely repeated public good game with varying partners. Within each period, participants are pairwise matched and contribute simultaneously. Participants are informed about contributions and each participant evaluates her partner's contribution. At the beginning...

Competitive rewards are often assigned on a regular basis, e.g., in annual salary negotiations or employee-of-the-month schemes. The repetition of competitions can imply that opponents are matched based on earlier outcomes. Using a real-effort experiment, we examine how cheating and effort...

Online interactions are frequently governed by reputation systems that allow users to evaluate each other after an interaction. Effective reputation systems can increase trust and may improve efficiency in market settings. In recent years, however, fake reviews have become increasingly...

We present a theoretical model of a linear public good game in which heterogeneous players express social approval after observing contributions. The model explains how social approval is expressed and predicts positive contributions if subjects have a preference for social approval. Using a...

We report the results of a vignette study with an online sample of the German adult population in which we analyze the interplay between need, equity, and accountability in third-party distribution decisions. We asked participants to divide firewood between two hypothetical persons who either...

Aufgrund bestehender und sich weiter verstärkender Altersarmut steht der Reformbedarf der Leistungsseite der Gesetzlichen Rentenversicherung (GRV) im Zentrum der wissenschaftlichen und politischen Diskussion. Im Fokus stehen dabei Personen mit lückenhaften Erwerbsbiographien und niedrigen...