Biglaiser, Gary; Crémer, Jacques; Dobos, Gergely - Institut d'Économie Industrielle (IDEI), Toulouse … - 2010
We study a dynamic model with an incumbent monopolist and entry in every subsequent period. We rst show that if all consumers have the same switching cost, then the intertemporal prots of the incumbent are the same as if there was only one period. We then study the consequences of heterogeneity...