I extend the neoclassical 2x2x2 trade model to general preferences over a variety of goods supplied under monopolistic competition in a sector while the other sector is perfectly competitive. Non-homothetic preferences deliver pricing to market, incomplete pass-through and market size effects....

I extend the endogenous market structures approach to international trade theory and policy. When markets are characterized by strategic interactions and endogenous entry, opening up to trade decreases the price level, and increases concentration and the production of each firm, with a positive...

I characterize the optimal unilateral trade policy for domestic firms competing in domestic or integrated markets with endogenous entry of foreign firms. Under conditions satisfied in most trade models (as with quasi-linear or Dixit-Stiglitz preferences), the analysis is simplified by a...

With strategic interactions and endogenous entry in a market, opening up to trade creates gains under very general conditions. Under Dixit-Stiglitz preferences and Cournot (or Bertrand) competition, an expansion of the market size induces exit of domestic firms, lower prices and larger...