In a laboratory experiment we study how costly punishment behavior of second and third parties in a social dilemma situation is affected by monitoring costs. Subjects have to pay a fee over and above punishment costs if they wish to condition punishments on previous play, which is equivalent to...

This paper studies monitoring and punishment behavior by second and third parties in a cooperation experiment with endogenous information structures: Players are uninformed whether the target player cooperated or defected at the cooperation stage, but can decide to resolve the information...

We characterize 'Games of Altruistic Cooperation' as a class of games in which cooperation leaves the individual and the group of decision-makers worse off than defection, but favors individuals outside the group. An example is climate change mitigation. In this context, we experimentally...