can promote cooperation through a combination of sorting and opportunistic signaling, with late period defections by … remains unclear. In each of six treatments that vary the cooperation premium and the informational basis for reputation …, that with a high cooperation premium and good information, investment in reputation grows across sets of finitely …

opportunity for profitable cooperation. Our experimental method creates two groups of subjects who are similar but have different … long-run losses. Initially similar, cooperation rates for groups with different intelligence levels diverge, declining in … groups of lower intelligence, and increasing to reach almost full cooperation levels in groups of higher intelligence …

. For this purpose, we develop an infinitely repeated rent-seeking model with two groups where within-group cooperation is … then characterize the conditions under which cooperation among fellow members within each group can be achieved as a … stationary subgame perfect equilibrium. The main conclusion is that the larger group has more chances to maintain cooperation …

Social and political inequality among individuals is a common driving force behind the breakdown in cooperation. In … this paper, we theoretically and experimentally study cooperation among individuals faced with a sequence of collective …-action problems in which the benefits to cooperation are divided according to political power that is obtained through a contest. We …

of a Prisoner' Dilemma game. When time preferences are heterogeneous and bounded away from one, how "much" cooperation … can be achieved by an ongoing group? How does group cooperation vary with the group' size and structure? For an arbitrary … distribution of discount factors, we characterize the maximal average co-operation (MAC) likelihood of this game. The MAC …

-Stay-Lose-Shift, are not prevalent. We also find that the strategies used to support cooperation change with the parameters of the game …