Non-coalitional Core-Walras Equivalence in Finitely Additive Economies with Extremely Desirable Commodities

We prove an individualistic Core-Walras equivalence for finitely additive economies with a reflexive and separable Banach lattice as a commodity space, and with proper preferences. The technique is based upon the use of confederate models previously introduced by the same authors, and then extended to economies that can be approximated in a suitable sense by a sequence of confederate models.