goods experiment and a joy-of-destruction experiment with pastoralists from both areas. Results from the joy …-of-destruction experiment reveal that a substantial proportion of people are willing to reduce another subject's income, although this comes at …

We study how punishment influences conditional cooperation. We ask two questions: 1) how does conditional cooperation … cooperation with punishment which leads to a decrease in conditional cooperation. The power to punish means more responsibility …

and indirect reciprocity as well as third-party punishment – emerges earliest as an effective means to increase … cooperation in a repeated prisoner’s dilemma game. We find that third-party punishment exhibits a strikingly positive effect on … cooperation rates by doubling them in comparison to a control condition. It promotes cooperative behavior even before punishment …

and indirect reciprocity as well as third-party punishment – emerges earliest as an effective means to increase … cooperation in a repeated prisoner’s dilemma game. We find that third-party punishment exhibits a strikingly positive effect on … cooperation rates by doubling them in comparison to a control condition. It promotes cooperative behavior even before punishment …

and indirect reciprocity as well as third-party punishment – emerges earliest as an effective means to increase … cooperation in a repeated prisoner's dilemma game. We find that third-party punishment exhibits a strikingly positive effect on … cooperation rates by doubling them in comparison to a control condition. It promotes cooperative behavior even before punishment …

and indirect reciprocity as well as third-party punishment - emerges earliest as an effective means to increase … cooperation in a repeated prisoner's dilemma game. We find that third-party punishment exhibits a strikingly positive effect on … cooperation rates by doubling them in comparison to a control condition. It promotes cooperative behavior even before punishment …

and indirect reciprocity as well as third-party punishment - emerges earliest as an effective means to increase … cooperation in a repeated prisoner's dilemma game. We find that third-party punishment exhibits a strikingly positive effect on … cooperation rates by doubling them in comparison to a control condition. It promotes cooperative behavior even before punishment …

reciprocity, and third-party punishment – emerges earliest as a means to increase cooperation in a repeated prisoner's dilemma … game. We find that third-party punishment doubles cooperation rates in comparison to a control condition. Children also …

, indirect reciprocity, and third-party punishment - emerges earliest and is more effective as a means to increase cooperation in …, punishment more than doubles cooperation rates, making it the most effective mechanism to promote cooperation. We also find that … findings with a meta-analysis of studies on cooperation among adults and older children, confirming that punishment outperforms …

We use an experiment to test the hypothesis that groups consisting of like-minded cooperators are able to cooperate … irrespective of punishment and therefore have a lower demand for a costly punishment institution than groups of like-minded free … riders, who are unable to cooperate without punishment. We also predict that the difference in the demand for punishment is …