We study the effect of group size on cooperation in voluntary contribution mechanism games. As in previous experiments … find that cooperation is highest of all in twoperson groups. The findings in the high MPCR condition are consistent with … those from n-person prisoner's dilemma and oligopoly experiments that suggest it is more difficult to sustain cooperation in …

Peer punishment is widely lauded as a decentralized solution to the problem of social cooperation. However … another structural setting: a system of generalized exchange. In a laboratory experiment, a repeated four-player prisoner … punishment was primarily altruistic, was sensitive to costs, and promoted cooperation. In generalized exchange, peer punishment …

temporary group member's effort but also the efforts of the permanent group members and, ultimately, also cooperation within the …

anonymous, subjects are better at predicting second-stage behavior, and maintain a substantially higher level of cooperation. …

anonymous, subjects are better at predicting second-stage behavior, and maintain a substantially higher level of cooperation …