We study the effect of group size on cooperation in voluntary contribution mechanism games. As in previous experiments … find that cooperation is highest of all in twoperson groups. The findings in the high MPCR condition are consistent with … those from n-person prisoner's dilemma and oligopoly experiments that suggest it is more difficult to sustain cooperation in …

temporary group member's effort but also the efforts of the permanent group members and, ultimately, also cooperation within the …

purposes of punishment, deterrence and special prevention. We investigate Bentham's intuition in a public goods lab experiment …. -- Punishment ; Deterrence ; Special Prevention ; Jeremy Bentham ; Experiment ; Public Good …The most famous element in Bentham's theory of punishment, the Panopticon Prison, expresses his view of the two …

. Experimental evidence on voluntary public good provision shows that the option to punish others substantially improves cooperation …, even if punishment is costly. However, these studies focus on situations where there is no uncertainty about others …' behavior. We investigate punishment in a world with “reasonable doubt” about others' contributions. Interestingly, people …

. Experimental evidence on voluntary public good provision shows that the option to punish others substantially improves cooperation …, even if punishment is costly. However, these studies focus on situations where there is no uncertainty about others …' behavior. We investigate punishment in a world with “reasonable doubt” about others' contributions. Interestingly, people …