: (i) only eight configurations are possible for the core, which contains at most six allocations; (ii) for each core …

This paper provides a general overview of the literature on the core of an exchange economy with asymmetric information …. Incentive compatibility is emphasized in studying core concepts at the ex ante and interim stage. The analysis includes issues … of non-emptiness of the core as well as core convergence to price equilibrium allocations. …

information that coalitions can share. The coarse and fine core, as originally defined by Wilson (1978), correspond to two polar …An appropriate (interim) notion of the core for an economy with incomplete information depends on the amount of … cases, involving no information sharing and arbitrary information sharing, respectively. We propose a new core notion, the …

information that coalitions can share. The coarse and fine core, as originally defined by Wilson (1978), correspond to two polar …An appropriate (interim) notion of the core for an economy with incomplete information depends on the amount of … credible core, which incorporates incentive compatibility constraints, and is based on the idea that a coalition can coordinate …

A core allocation of a complete information economy can be characterized as one that would not be unanimously rejected … of such voting games, this approach makes it possible to derive core concepts in which the transmission of information … among members of a coalition is endogenous. Our results lend support to the credible core of Dutta and Vohra (2003) and the …

The seminal contribution of Debreu-Scarf (1963) connects the two concepts of core and competitive equilibrium in … exchange economies. In effect, their core-equilibrium equivalence result states that, when the set of economic agents is … replicated, the set of core allocations of the replica economy shrinks to the set of competitive allocations. Florenzano (1989 …

refinement of Myerson's core for which information disseminates across coalitions within a given random blocking mechanism. Under …We study core convergence in interim quasilinear economies with asymmetric information, concentrating on core notions … in which information is transmitted endogenously within coalitions and the incentive constraints are relevant …

We study information transmission in large interim quasilinear economies using the theory of the core. We concentrate … on the core with respect to equilibrium blocking, a core notion in which information is transmitted endogenously within … coalitions, as blocking can be understood as an equilibrium of a communication mechanism used by players in coalitions. We …