We ask how buyers can make use of bilateral communication in a procurement setting with moral hazard. We focus on a setting where buyers and potential sellers can exchange cheap-talk messages before trading and where the seller is determined via a buyer-determined procurement auction. In this...

Recent reforms in health care have introduced a variety of pay-for-performance programs using financial incentives for physicians to improve the quality of care. Their effectiveness is, however, ambiguous as it is often difficult to disentangle the effect of financial incentives from the ones of...

In recent health care reforms, several countries have replaced pure payment schemes for physicians (fee-for-service, capitation) by so-called mixed payment schemes. Until now it is still an unresolved issue whether patients are really better off after these reforms. In this study we compare the...

The dynamics of behavior observed in standard public-good experiments can be explained by imperfect conditional cooperation combined with social learning (Fischbacher and Gächter, 2010). But it is unclear what determines first-round contributions. We argue that first-round contributions depend...

Most common physician payment schemes include some form of traditional capitation or fee-for-service payment. While health economics research often focuses on direct incentive effects of these payments, we demonstrate that the opportunity to sort into one's preferred payment scheme may also...

Mixed payment systems have become a prominent alternative to paying physicians through fee-for-service and capitation. While theory shows mixed payment systems to be superior, empirically, causal effects on physicians' behavior are not well understood when introducing mixed systems. We...

This study explores the effects of communication and its interaction with reputation information. Our focus is on buyer-determined procurement auctions with moral hazard in which buyers can select a bidder based on prices and all other information available. The results of our controlled...

Since Mancur Olson’s “Logic of collective action” it is common conviction in social sciences that in large groups the prospects of a successful organization of collective actions are rather bad. Following Olson’s logic, the impact of an individual’s costly contribution becomes smaller...

We study how competition between physicians affects the provision of medical care. In our theoretical model physicians are faced with a heterogeneous patient population, in which patients systematically vary with regard to both, their responsiveness to the provided quality of care and their...