information conditions, where cheating is less obvious, punishment is much less effective in enforcing cooperation. Evidently, the …Explaining human cooperation in large groups of non-kin is a major challenge to both rational choice theory and the … theory of evolution. Recent research suggests that group cooperation can be explained by positing that cooperators can punish …

punished. As a consequence, the existence of an opportunity for costly punishment causes a large increase in cooperation levels …This paper provides evidence that free riders are heavily punished even if punishment is costly and does not provide … because potential free riders face a credible threat. We show, in particular, that in the presence of a costly punishment …

Carpenter and Matthews (2009) examine the cooperation norms determining people's punishment behavior in a social … to be both consistent across decisions and relatively stable over time. -- Experiment ; public-good ; punishment ; social … punishment. Using multiple punishment stages and self-contained episodes of interaction, we disentangle the effects of …

We analyze the interplay between cooperation norms and people's punishment behavior in a social-dilemma game with … multiple punishment stages. By combining multiple punishment stages with self-contained episodes of interaction, we are able to … disentangle the effects of retaliation and norm-related punishment. An additional treatment provides information on the norms …

Carpenter and Matthews (2009) examine the cooperation norms determining people's punishment behavior in a social … punishment. Using multiple punishment stages and self-contained episodes of interaction, we disentangle the effects of … retaliation and norm-related punishment. An additional treatment provides data on the norms bystanders use in judging punishment …