Constructing a two-good (competitive and imperfectly-competitive goods), two-primary factor (capital and labor) and two-country model of international trade where the imperfectly-competitive sector is subject to increasing returns to scale, we establish an oligopolistic version of the...

Constructing a two-good (a competitive and monopolized goods), two-primary factor (capital and labor) and two-country model of international trade where the monopolized sector is subject to increasing returns to scale, we establish an oligopolistic version of the Heckscher-Ohlin Theorem.

Constructing a two-country, two-good, two-factor model of international trade under quasi-linear utility functions, we obtain a Modified Heckscher-Ohlin (MHO) Theorem that relates the trade pattern to the international distribution of factor endowments. We also show that the MHO Theorem survives...

This article develops a dynamic game model of an asymmetric oligopoly with a renewable resource to reconsider welfare effects of increases in the number of firms. We show that increasing not only the number of inefficient firms but also that of efficient firms reduces welfare, which sharply...

This paper develops a dynamic game model of an asymmetric oligopoly with a renewable resource to reconsider welfare effects of increases in the number of firms. We show that increasing not only the number of inefficient firms but also that of Efficient firms reduces welfare, which sharply...

We revisit voluntariness of voluntary export restraints (VERs) in a differential game model of duopoly with sticky prices. We show that a VER set at the free trade level has no effect on equilibrium under open-loop strategies while the same policy results in a smaller profit for the exporting...

This paper formulates a reciprocal market model of international duopoly with network externalities to reconsider welfare effects of reductions in transport costs and tariffs. Depending on the magnitude of network externalities, we show two possibilities. One of them, which emerges under strong...

The literature on strategic environmental policy has not fully addressed welfare effects of trade liberalization from autarky. In a reciprocal market model of duopoly with transboundary pollution, we study how reductions in transport costs and import tariffs affect the Nash equilibrium welfare...