"We consider Roy's economies with perfectly competitive labor markets and asymmetric information. Firms choose their investments in physical capital before observing the characteristics of the labor markets they will face. We provide conditions under which equilibrium allocations are constrained...

"Theoretical and empirical contributions on export behavior highlight the importance of firms' productivity and their levels of economies of scale on firms' export success in 'foreign' markets. In the context of agglomeration economies, firms enjoy productivity gains when they are located close...