Abstract:
In this paper I intend to model a firm decision of entrance into a profitable fashion market where fashion results from the existence of positive interdependence between buyers utility functions. I conclude theoretically that i) when incumbent firm has an aggressive strategy it sets a marketing limit strategy that do not permit the other firm to enter the fashion market and that ii) when incumbent firm accommodates the other firm a la Cournot there is no pure strategy Nash equilibrium. The properties of the model seem to be in accordance with the persistence in time of fashion brands.