This paper studies infinitely repeated games where players can form coalitions to coordinate their actions via self-enforcing agreements. The proposed notion of "stable agreements" extends a characterization of the set of subgame perfect equilibrium paths by Greenberg (1989, 1990) to account for...

This paper defines "negotiation-proof Nash equilibrium", a notion that applies to environments where players can negotiate openly and directly prior to the play of a noncooperative game. It recognizes the possibility that a group of self-interested players may choose, voluntarily and without...