Abstract
This paper reviews recent work on the relationship between industrial organization and international trade. Five strands in the theoretical literature are discussed. First is the role of economies of scale as a cause of intra-industry trade, modelled using monopolistic competition. Second is the effect of tariffs and quotas on domestic market power. Third is the analysis of dumping as international price discrimination. Fourth is the potential strategy role of government policy as an aid to domestic firms in oligopolistic competition. Finally, the paper discusses recent work that may provide a new argument for protectionism. A concluding section discusses recent efforts at quantification of new trade theory.
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