Do individuals trained in law enforcement punish or reward differently from typical student subjects? We analyze norm enforcement behavior of newly appointed police commissioners in both a Voluntary Contribution Mechanism game and a Common Pool Resource game. Our experimental design includes...

Conditional cooperation is an important factor in voluntary cooperation. Fehr and Schmidt (1999) show that in public good games conditional cooperation among rational players is feasible if cooperators are sufficiently inequality averse and if there are not too many free riders. The derived...

In this paper, we extend the Fehr and Schmidt model of inequality aversion to a situation where the players differ with respect to their benefits and costs from contributions to a non-linear public good. A necessary condition for contributing to the public good is that the players’ benefit...