’s decisions open to others may enhance cooperation in these situations. But it is still unknown whether people can successfully … all show their identities and successfully achieve cooperation with their partners if a small explicit cost is charged for …

reasons such as group polarization. This paper experimentally compares cooperation behaviors between pairs and individuals in … suggest that the enhanced cooperation behavior of pairs may be driven by (a) the mere fact that they have partners when they … partners in their pairs, and (c) stronger conditional cooperation behavior of pairs to their matched pairs. …

This paper investigates how punishment promotes cooperation when the punishment enforcer is a third party independent … implicated parties are allowed to punish each other, both the cooperation rate and the earnings are lower when the enforcement of …