apply them in the characterization of two solution concepts. One is Wilson's (1978) Coarse Core and the other is a … subsolution of it which we call the Coarse+ Core. …

We provide a result for non-emptiness of the core in NTU games. We use a payoffs-dependent balancedness condition …, based on transfer rate mappings. Going beyond the non-emptiness of standard core, existence of some refined solution is … proved, including specific core allocations and equilibrium-core allocations in parameterized collection of cooperative games …

Conventional wisdom tells us that with no market failure and local non- satiation of preferences, the core is at least … remains efficient, but no longer need be in the core. …

that the existence of strongly stable networks is equivalent to core existence in a derived cooperative game and use that …

sense that a deviating coalition cannot determine the payoffs of those coalitions that are not involved in the deviation …. The minimal (for inclusion) dominant set is non-empty and for a game with a non-empty coalition structure core, the … minimal dominant set returns this core. …

cores the core can be reached in a bounded number of proposals and counterproposals. Our result is more general than this …

connected support. All core allocations consist of connected coalitions and they are Tiebout equilibria as well. We also examine …Many local public goods are provided by coalitions and some of them have network effects. Namely, people prefer to … effect, the core is nonempty when coalition feasible sets are monotonic and players' preferences over public goods have …

does not hold for optimistic players. We propose a new core concept to overcome this puzzle and provide numerical …

invoke here is the core. We also show, that a simple generalization of the Deferred Acceptance Procedure with men proposing … due to Gale and Shapley(1962), yeilds outcomes for a generalized marriage problem, which necessarily belong to the core …