This paper experimentally examines how religious festivals and the degree of religiosity affect cooperation and … religious festivals other than the normal daily prayers. The overall results show no differences in cooperation or altruistic … differences in beliefs about others contributions. By and large, this indicates the importance of conditional cooperation. …

We use skin conductance responses and self-reports of hedonic valence to study the emotional basis of cooperation and …. The application of sanctions activates a virtuous emotional circle that accompanies cooperation. Emotionally aroused … punished, and increase their subsequent level of cooperation. The outcome is an increased level of contribution that becomes …

representative behavioral data from a social dilemma experiment. We identify which survey questions intended to elicit people's trust … correlate well with behaviorally exhibited trust in the experiment. People above the age of 65, highly skilled workers and …

We investigate how group boundaries, and the economic environment surrounding groups, affect altruistic cooperation and … harm those who defect, encouraging a norm of cooperation towards the group. Adding competition between groups causes even … stronger in-group cooperation, but also a qualitative change in punishment: punishment becomes antisocial, harming cooperative …

We test if cooperation is promoted by rank-order competition between groups in which all groups can be ranked first, i … are absent if groups perform at the same level and it therefore does not eliminate low-cooperation equilibria. We find … that all-can-win competition produces a universal increase in cooperation and benefits a majority of individuals if …

, which can be interpreted as weak evidence for parental altruism. The paper uses data from the German Socio-Economic Panel …

cooperation by members of one group and the relative size of that group, affect the incentives to cooperate by members of the …

experiment. We find no differences between treatments. This suggests that those dictators who give are purely internally …

renegotiation-proof. Second, it introduces parental altruism. The behavioural and policy implications are illustrated by showing the … effects of public pensions and credit rationing. These implications are not much affected by whether altruism is assumed or …

We develop a theory of prosocial behavior that combines heterogeneity in individual altruism and greed with concerns …