Un modèle de concurrence monopolistique: une approche en équilibre général

This paper is devoted to the study of the existence of a general equilibrium with price making firms. I assume that each firm is able to compute an objective demand for his produced goods and uses this information in order to set prices. The definition of an objective demand is set in a context of general equilibrium and the existence of such a continuous function is proved under few assumptions. I also define a monopolistic equilibrium conditional to this objective demand and show it existence under standart assumptions.