Meier (2012) gave a "mathematical logic foundation" of the purely measurable universal type space (Heifetz and Samet, 1998). The mathematical logic foundation, however, discloses an inconsistency in the type space literature: a finitary language is used for the belief hierarchies and an...

Meier (2012) gave a "mathematical logic foundation" of the purely measurable universal type space (Heifetz and Samet, 1998). The mathematical logic foundation, however, discloses an inconsistency in the type space literature: a finitary language is used for the belief hierarchies and an...

In finitely additive exchange economies the usual definition of competitive equilibrium can result in an empty equilibrium set, and therefore one has to consider notions of ε-competitive equilibria. In this paper we investigate the relationship between two notions of ε-competitive equilibria

We characterize the preference domains on which the Borda count satisfies Maskin monotonicity. The basic concept is the notion of a cyclic permutation domain which arises by fixing one particular ordering of alternatives and including all its cyclic permutations. The cyclic permutation domains...