The Structure and Performance of the World Market in a Cobb-Douglas Example

In an international trading economy where countries set tariffs strategically, modeled using a Cobb-Douglas example, this paper studies the relationship between the structure and the performance of the world market. Using new results from monotone comparative statics in a Shapley-Shubik market game, replication of such an international trading economy is studied. It is shown that, as the economy is replicated, the equilibrium converges monotonically towards the equilibrium of a competitive equilibrium model of international trade. The distributional implications of replication are also evaluated.