In repeated public good experiments, reciprocity helps to sustain high levels of cooperation. Can this be achieved by … location. This mechanism of individually targeted sanctions helps to foster initial cooperation. It decreases over time …, however. Location choices are used to reciprocate, but may not suffice to stabilize voluntary cooperation as an effect …

We study how the willingness to enter long-term bilateral relationships affects cooperation even when parties have … little information about each other, ex ante, and cooperation is otherwise unenforceable. We experimentally investigate a … research, longer interactions facilitate cooperation. However, many individuals avoid long-term commitment, with uncooperative …

This paper provides a new way to identify conditional cooperation in a real-time version of the standard voluntary … further contribution, and use a permutation test on contribution cycles to assign a measure of conditional cooperation to each … group play. The validity of the measures is tested in an experiment. We find that roughly 20% of the plays exhibit dynamics …

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 …