This paper investigates the joint impact of Chamberlinian monopolistic competition and Ricardian comparative advantages on the structure of trade and industries. We develop a trade model with several industries employing local factors. We then investigate the structure of trade and industries as...

In the Dixit-Stiglitz model of monopolistic competition, entry of firms is socially too small. Other authors have shown that excess entry is also a possibility with other preferences for diversity. We show that the cost structure and workers's rents can also explain excess entry