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

cooperation flourish, and withholding punishment makes cooperation collapse. In less cooperative social environments, where … antisocial punishment has been detected, punishment was detrimental to cooperation. The success of punishment in enhancing … cooperation was explained as deterrence of free riders by cooperative strong reciprocators, who were willing to pay the cost of …

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

We report on an experiment designed to explore whether a written expression of disapproval affects future levels of … cooperation. In between two identical public goods games, participants play a mini dictator game that, depending on the treatment …

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

We use an experiment to test the hypothesis that groups consisting of like-minded cooperators are able to cooperate …

We use an experiment to test the hypothesis that groups consisting of like-minded cooperators are able to cooperate …

We explore in an experiment what leads to the breakdown of partnerships. Subjects are assigned a partner and …

We study the stability of voluntary cooperation in response to varying group growth rates. Using a laboratory public … cooperation. We then study the effect of exogenously varying growth rates on cooperation. Slow growth yields higher cooperation …-reinforcing beliefs persisting under slower growth. Allowing incumbent group members to select growth rates also sustains high cooperation …