[UserCP=2]

Dixit and Stiglitz——Monopolistic Competition and optimum production diversity

Paul Krugman ——increasing returning and economic geography

Paul Krugman ——scale economies, product differentiation and the pattern of trade

Tomoya Mori , Koji Nishikimi and Tony E. Smith——Some Empirical Regularities of Spatial Economies ARelationship between Industrial Location and City Size

[/UserCP]