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...