We study experimentally voluntary contributions to public goods when none, some, or all previous decisions are observable. When agents observe previous moves, they tend to condition their cooperation on observed cooperation. This leads to two effects of increased transparency: on the one hand,...

This paper reports on a two-task principal-agent experiment in which only one task is contractible. The principal can either offer a piece-rate contract or a (voluntary) bonus to the agent. Bonus contracts strongly outperform piece rate contracts. Many principals reward high efforts on both...

Private lands have an important role in the success of the Endangered Species Act (ESA). The current command-andcontrol approach to protecting species on private land has resulted in disincentives to the landowner, which have decreased the ability of the ESA to protect many of our endangered and...

Following tournament theory, incentives will be rather low if the contestants of a tournament are heterogeneous. We empirically test this prediction using a large dataset from the German Hockey League. Our results show that indeed the intensity of a game is lower if the teams are more...

A main prediction of agency theory is the well known risk-incentive trade-off. Incentive contracts should be found in environments with little uncertainty and for agents with low degrees of risk aversion. There is an ongoing debate in the literature about the first trade-off. Due to lack of...

This paper investigates the implications of individuals’ mistaken beliefs of their abilities on incentives in organizations using the principal-agent model of moral hazard. The paper shows that if effort is observable, then an agent’s mistaken beliefs about own ability are always favorable...

This dissertation is a collection of three independent research papers and three chapters with surveys introducing into the respective literature. The first paper analyses the effects of introducing Inequity Aversion in a Moral Hazard Problem, the second paper is about optimal delegation in...

In this paper, we examine the pure exchange motive for intergenerational transfers within the family. We consider a model where a selfish parent offers a financial transfer in exchange for the services of the child. Using a Stackelberg game, we study the optimal attention-money contract between...

In Italy employees are fully insured against earning losses due to illness. Since worker’s health is not easily verifiable, absenteeism due to illness is considered an empirical proxy for employee shirking. The Bank of Italy Household Survey (SHIW) provides individual data on days of absence....

Banks entering an emerging market face a lot of uncertainty about the risks involved in lending. We use a unique unbalanced panel of nearly 700 short-term loans made to SMEs in Slovakia between January 2000 and June 2005. Of the loans granted, on average 6.0 per cent of the firms defaulted....