Because costly punishment is not credible, subgame perfection suggests that punishment will not deter free riding … strategies seen in the lab and use the simulation to develop hypotheses about why group size should matter when punishment is … rates no lower than small groups because punishment does not fall appreciably in large groups. However, hindrances to …

incomplete contract. It is shown that the efficiency of these solutions is very sensitive to the characteristics of the good or …

purporting to show robust and precise estimates of a substantial deterrent effect of capital punishment. We assess the various …

in biology and the social sciences. Recent experimental evidence suggests that altruistic punishment is an important … mechanism to maintain cooperation among humans. In this paper we explore the boundary conditions for altruistic punishment to … maintain cooperation by systematically varying the cost and impact of punishment, using a subject pool which extends beyond the …

theories of fairness and reciprocity capture these forces. We find that cooperators' punishment is almost exclusively targeted … towards the defectors but the latter also impose a considerable amount of spiteful punishment on the cooperators. However …, spiteful punishment vanishes if the punishers can no longer affect the payoff differences between themselves and the punished …

. To provide theoretical foundations for social reciprocity, we show that generalized punishment norms survive in one of …