A number of studies have shown that peer punishment can sustain cooperation in public good games. This paper shows that … the format used to give subjects feedback is critical for the efficacy of punishment. Providing subjects with information …

This paper provides a comparative-statics analysis of punishment in public-good experiments. We vary the effectiveness … of punishment, that is, the factor by which punishment reduces the punished player's income. The data show that … contributions increase monotonically in punishment effectiveness. High effectiveness leads to near complete cooperation and welfare …

This paper provides a comparative statics analysis of punishment in public-good experiments. We vary systematically the … effectiveness of punishment, that is, the factor by which punishment reduces the punished player's income, and we find that … rates and welfare improvements. Below a certain threshold, however, punishment cannot prevent the decay of cooperation found …

avenge third-party punishment in one-shot interactions. The threat of counter-punishment has a large negative effect on the …