We elicit human conditional punishment types by conducting experiments. We find that their punishment decisions to an … individual are on average significantly positively proportional to other members’ punishment decisions to that individual. …

We report a framed field experiment, in which we study the effectiveness of punishment and reward in sustaining …

This paper investigates how punishment promotes cooperation when the punishment enforcer is a third party independent … of the implicated parties who propose the punishment. In a prisoner's dilemma experiment, we find an independent third … party vetoes not only punishment to the cooperators but punishment to the defectors as well. Compared with the case when the …

Considerable experimental evidence shows that although costly peer-punishment enhances cooperation in repeated public …-good games, heavy punishment in early rounds leads to average period payoffs below the non-cooperative equilibrium benchmark. In … fall prey to a poverty trap or, to avoid this, abstain from punishment altogether. We show that neither is the case …