This paper argues that developing economies may face a trade-off between specializaing according to existing comparative advantage (in low-technology goods), and entering sectors in which they currently lack a comparative advantage, but may acquire such an advantage in the future as a result of...

Theoretical models of growth and trade suggest that patterns of international specialisation are inherently dynamic and evolve endogenously over time. Initial comparative advantaged are either reinforced or gradually unwound with the passage of time. This paper puts forward an empirical...

"In this paper we develop a multi-sector general equilibrium model of firm heterogeneity, worker heterogeneity and labor market frictions. We characterize the distributions of employment, unemployment, wages and income within and between sectors as a function of structural parameters. We find...

"This paper presents a model of international trade that features heterogeneous firms, relative endowment differences across countries, and consumer taste for variety. The paper demonstrates that firm reactions to trade liberalization generate endogenous Ricardian productivity responses at the...