Economic and social interaction takes place between individuals with heterogeneous characteristics. We investigate … heterogeneous groups. When punishment is not allowed all groups converge towards free-riding. With punishment, contributions … that these differences are not accidentally but enforced by punishment. The enforced contribution norms are related to …

-group behavior of Syrian refugees and Lebanese nationals in a repeated public good game without and with punishment. We find that … alleviate any economic and social pressures. …

prosocial judges (if institutionally possible), and immediately establish a social norm of high cooperation. This norm appears … of universal cooperation because the more prosocial subjects populate the two efficient institutions first, elect … to guide subjects’ cooperation and punishment choices, including the virtually complete removal of antisocial punishment …

We consider the psychological and social foundations of human contributions and punishments in a voluntary … contributions mechanism with punishment (VCMP). We eliminate ‘dynamic economic linkages’ between the two stages of our ‘modified … rigorous theoretical predictions that are then tested with pre-registered experiments in China and the UK. Social norms …

contributions in the other groups showed the well known declining pattern. One implication is that corporate social responsibility …

interactions in the workplace environment may have important spillover effects on prosocial behavior outside of work. …

There is a fundamental difference between the natural and the social sciences due to reactivity. This difference … social science, namely reactivity, i.e. human beings systematically respond to economic data, and in particular to …

leads to clustering, is crucial for the survival of the Pareto dominant actions. The evolution of leader and crowd …