We investigate how rational individuals partition themselves into different coalitions in "hedonic games" [see Banerjee, Konishi and S”nmez (1998) and Bogomolnaia and Jackson (2000)], where individuals' preferences depend solely on the composition of the coalition they belong to. We show that...

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...

We study the stability of cartels in a differential game model of oligopoly with sticky prices (Fershtman and Kamien 1987). We show that when firms use closed-loop strategies and the rate of increase of the marginal cost is .small enough., the grand coalition (i.e., when the cartel includes all...

We revisit Lucas’(1968) counter example for the existence of von Neumann and Morgenstern (1944) stable set (solution) for coalitional games. We show that when we endow the agents with foresight, particularly, when we replace von Neumann and Morgenstern’s (1944) dominance relation with the...

This short paper shows that intrapersonal bargaining in a dual-self model can be used to provide a foundation for quasi-hyperbolic discounting model popularized by Laibson [Laibson, David (1994), "Essays in Hyperbolic Discounting," Ph.D. dissertation, MIT., Laibson, David (1997), "Golden Eggs...

Although global free trade is efficient, each country's benefit from free trade depends on the path that leads to the global free trade agreement. Using a dynamic model of trading bloc formation, we show that when global free trade is reached gradually the countries that are initially excluded...

We consider environments in which agents can cooperate on multiple issues and externalities are present both within and across issues. We propose a way to extend (Shapley) values that have been put forward to deal with externalities within issues to games where there are externalities within and...