Una Aplicaci 3n del An lisis no Diferenciable a la Econom -a Matem tica: Caracterizaci 3n de la Hip 3tesis de Libre Eliminaci 3n por medio del Cono Normal a la Frontera del Conjunto

This paper is devoted to study some analytical properties of sets that satisfy the free disposal hypothesis. This hypothesis plays a relevant role in general equilibrium theory, because it is widely used to ensure both the positiveness of equilibrium prices and the efficiency of equilibrium allocation. The main result of this paper is a characterization of this hypothesis in terms of the normal cone to the set at its boundary points.