Florenzano, Monique; Gourdel, Pascal; Jofré, Alejandro - HAL - 2006
is not convex. For this kind of nonconvex economies, a recent result obtained by one of the authors, introduces …, and introduce a nonconvex version of the properness assumptions on preferences and the total rpoduction set. Applied to … condition. The proof uses a Hahn-Banach Theorem generalization by Borwein-Jofré which allows to separate nonconvex sets in …