نتیجه وجود تعادل با فروش استقراضی

We provide a proof of the existence of a quasi-equilibrium in an exchange economy with short selling when the preference relations of the investors are represented by a partial preorder. This setting encompasses the case of preference relations derived from a utility function. A second purpose of this paper is to compare the compactness condition used in this existence result with some compactness concepts found in the literature.