I show how improper conditioning of beliefs can reduce contribution in public goods environments with interdependent values. I consider a simple model of a binary, excludable public good. In equilibrium, provision of the public good is good news about its value. Naive players who condition...

This paper investigates the interaction of intrinsic and extrinsic incentives. We propose a simple principal-agent model with control that incorporates the existence of social groups resulting from common experiences in the past. Our laboratory experiment shows that agents with previous common...

Many Social Interactions display either or both of the following well documented phenomena. People tend to interact with similar others (homophily). And they tend to treat others more favorably if they are perceived to share the same identity (in-group bias). While both phenomena involve some...

In a punishment experiment, we separate the demand for punishmentin general from a possible demand to conduct punishmentpersonally. Subjects experience an unfair split of their earnings froma real effort task and have to decide on the punishment of the personwho determines the distribution....

This paper investigates the interaction of intrinsic and extrinsic incentives. We propose a simple principal-agent model with control that incorporates the existence of social groups resulting from common experiences in the past. Our laboratory experiment shows that agents with previous common...

We study the role of social identity in determining the impact of social fragmentation on public good provision using laboratory experiments. We find that as long as there is some degree of social fragmentation, increasing it leads to lower public good provision by majority group members. This...

School of Economics, University of Nottingham, University Park Campus and Department of Economics (AE1), Maastricht University

In an experiment, we studied how small groups tackle a company takeover game, a task where participants deciding in isolation frequently exhibit the winner’s curse. We found that groups of three members, who could exchange opinions and chat, substantially reduced the winner's curse and...

In this experiment I study a novel three-player ultimatum game in which two proposers with unequal amounts of money simultaneously submit offers to one responder, who may accept at most one offer. I compare the predictions of inequity aversion, advantage seeking, and self-interest. Unlike...

We study the role of social identity in determining the impact of social frag- mentation on public good provision using laboratory experiments. We nd that as long as there is some degree of social fragmentation, increasing it leads to lower public good provision. This is mainly because the share...