everal empirical findings have challenged the traditional trade-off between risk and incentives. By combining risk aversion and limited liability in a standard principal-agent model the empirical puzzle on the positive relationship between risk and incentives can be explained.

In the context of principal-agent theory risk is largely seen as a source that causes inefficiencies and lowers incentives and accordingly is not in the principal’s interest. In this paper I compare two different designs of a collective tournament where output in a team is generated through a...

We derive the optimal contract between a principal and a liquidity-constrained agent in a stochastically repeated environment. The contract comprises a court-enforceable explicit bonus rule and an implicit fixed salary promise that must be self-enforcing. Since the agent's rent increases with...

In the context of principal-agent theory risk is largely seen as a source that causes inefficiencies and lowers incentives and accordingly is not in the principal’s interest. In this paper I compare two different designs of a collective tournament where output in a team is generated through a...

Several empirical findings have challenged the traditional trade-off between risk and incentives. By combining risk aversion and limited liability in a standard principal-agent model the empirical puzzle on the positive relationship between risk and incentives can be explained.

We analyze the optimal choice of risk in a two-stage tournament game between two players that have different concave utility functions. At the first stage, both players simultaneously choose risk. At the second stage, both observe overall risk and simultaneously decide on effort or investment....

We test existing superstar theories for the German soccer league. We use various measures for individual players’ performance and media presence to analyze whether performance and popularity can explain salaries and superstars in soccer. Moreover, we argue that quantile regression technique...

Der Begriff der Ausbildungsadäquanz zielt auf den Grad der Übereinstimmung zwischen den im Bildungssystem erworbenen Qualifikationen und dem Anforderungsprofil der am Arbeitsmarkt ausgeübten Tätigkeit. Im Falle einer ausbildungsinadäquaten Beschäftigung oder auch Fehlqualifikation bleibt...

The IAB employment subsample is now available for researchers in a third, anonymised version. Following the so-called basic file and the regional file from the IAB employment subsample, which encompassed the years 1975 to 1990, the actualized version of the basic file covers now the years 1975...

In this paper we study the occupational progress and earnings attainment of immigrants in Germany over time and compare them to native Germans. Our analysis is guided by the human capital and segmented labor market theories. To assess the separate effects of occupational segmentation and...