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. …

In interim economies with asymmetric information, we show that the coarse core of Wilson (1978) does not converge to … price equilibrium allocations as the economy is replicated. This failure of core convergence is a basic consequence of … asymmetric information and extends to any reasonable notion of either (interim) core or price equilibrium. …

members of a coalition. We then define a concept of the Core that takes into account these communication possibilities. The … internal consistency of the improvements is considered and an Internally Consistent Core, which requires credibility from the …

-cooperative bargaining in coalitions of finite size. Under essentially the same conditions of core equivalence, we show that the strategic … theory of the core. With respect to previous work, our model relaxes differentiability and convexity of preferences, and also …