We study the effects of voluntary participation on cooperation in collective action problems. Voluntary participation … may foster cooperation through an entry mechanism, which leads to assortative selection of interaction partners, or an …

We study the coevolution of cooperation, preferences and cooperative signals in an environment where individuals engage …

We use experimental methods to investigate whether pledges of commitment can improve cooperation in endogenously … findings show that pledges of commitment alone can increase cooperation and welfare in committed partnerships. The introduction … partnerships fall solely on the individual choosing to break up, pledges of commitment fail to improve cooperation and welfare. …

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 …

Evolution of cooperation has traditionally been studied by assuming that individuals adopt either of two pure … strategies, to cooperate or defect. Recent work has considered continuous cooperative investments, turning full cooperation and … promotes the evolution of cooperation, our investigation gives a comprehensive picture of how relatedness affects the evolution …

Evolution of cooperation by reciprocity has been studied using two-player and n-player repeated prisoner’s dilemma … cooperation when less generous, and better at maintaining a long-term cooperation in the presence of rare defectors when more …

factors that are known to affect cooperation levels, and in so doing replicate and extend previous empirical research on …

Previous research on cooperation has primarily focused on egalitarian interactions, overlooking a fundamental feature …-group conflict, individuals who possess high rank or power tend to show less cooperation. How, then, is cooperation achieved within … cooperation and strategies, such as punishment and gossip, to promote cooperation in social dilemmas. In two studies involving …

human cooperation. Three implications for leadership are derived, which are summarized under the notion CC strategy. Firstly …