The observability of partners' past play is known to theoretically improve cooperation in an infinitely repeated … prisoner's dilemma game under random matching. This paper presents evidence from an incentivized experiment that reputational … information per se may not improve cooperation. A structural estimation suggests that a certain percentage of players act …

We study the development of cooperation in 929 young children, aged 3 to 6. In a unified experimental framework, we … examine pre-registered hypotheses about which of three fundamental pillars of human cooperation – direct and indirect … reciprocity, and third-party punishment – emerges earliest as a means to increase cooperation in a repeated prisoner's dilemma …

We study the effects of voluntary participation on cooperation in collective action problems. Voluntary participation … may foster cooperation through a mechanism of assortative selection of interaction partners based on false consensus bias … the effectiveness of these mechanisms in a one-shot public goods experiment. Voluntary participation has a positive effect …

post announcement mechanism does not have a significant effect on the cooperation rate. However, the nudge leads to a … striking increase in the cooperation rate. We provide suggestive evidence that the nudge we use provides subjects with a focal …

receive restricted access (a lower share). In a laboratory experiment Rank-Order-VCM elicits median contributions equal to the …

theory, while sociological theories of social ties and intergroup comparisons suggest that bilateral cooperation can be … strengthened if there exist outsiders that gain from cooperative break down. We investigate this in a laboratory experiment … implemented by letting subjects make a positive contribution to a public good if they choose to defect from cooperation, i …

equilibrium strategy. Exclusion has a positive impact on cooperation when it is followed by a quick rather than a slow … retaliation. Post-exclusion cooperation and forgiveness depend not only on the length of exclusion but also on the perceived …

We experimentally compare the consequences for group cooperation of two decision mechanisms involving the extension of …