This paper shows how larger group size can enhance punishing behavior in social dilemmas and hence support higher levels of cooperation.We focus on describing conflict technology using Lanchester's equations and study the role of "collectivity" of punishment to support cooperation in large...

Previous experiments have found a moderate, positive effect of group size on cooperation in voluntary contribution mechanism (VCM) games. This effect has been typically observed in experiments with groups of size 4 or more, and contrasts with results from n-person prisoner's dilemma and...