The paper studies infinitely repeated games in which the players' rates of time preference may evolve over time, depending on what transpires in the game. A key result is that in any first best equilibrium of the repeated prisoners' dilemma, the players must eventually cooperate. If we assume...

This paper provides a micro-foundation for approximate incentive compatibility using ambiguity aversion. In particular, we propose a novel notion of approximate interim incentive compatibility, approximate local incentive compatibility, and establish an equivalence between approximate local...

In a symmetric repeated game with standard preferences, there are no gains from intertemporal trade. In fact, under a suitable normalization of utility, the payoff set in the repeated game is identical to that in the stage game. We show that this conclusion may no longer be true if preferences...