We consider the effects of free entry on the market structure and social welfare of an asymmetric Cournot oligopoly. Even if we allow for the existence of different types of firms initially, only one type (in almost all cases) can survive in the long run. Free entry leads an economy to a...

We examine the long-run outcomes under free entry-exit when each firm not only takes account of the effects of her own entry-exit on the market structure but also takes full account of the effects due to other firms' simultaneous entry-exit. Adopting the framework of the theory of social...

We present two different scenarios of expanding the communication networks (through which the intermediate business services are traded) and examine their consequences on trade patterns in goods and welfare of the countries. The first scenario is the “successive expansion” of a single...

Taking account of the farsightedness of the countries and adopting the von Neumann-Morgenstern (vNM) stable set as the solution concept, we examine an FTA network formation game. FTA networks are represented by undirected graphs with their vertex sets being identified with the set of the...