Crettez, Bertrand; Fagart, Marie-Cécile - EconomiX, Université Paris Ouest-Nanterre la Défense … - 2008
We consider a simple general equilibrium model with imperfect competition. Firms are price taker in the input market and compete à la Cournot in some or all of the product markets (their technology displays constant returns to scale). We show that an increase in the number of firms does not...