In public-good provision, privileged groups enjoy the advantage that some of their members find it optimal to supply a positive amount of the public good. However, the inherent asymmetric nature of these groups may make the enforcement of cooperative behavior through informal sanctioning harder...

One individual and three collective punishment rules in a public good setting are analyzed. Evidence and explanations for differences between the rules concerning punishment intensity, contribution, profit levels, and justice are presented. Influences crucial to participants’ support for...