We develop a new general equilibrium model of trade with heterogeneous firms, variable demand elasticities and endogenously determined wages. Trade integration favours wage convergence, boosts competition, and forces the least efficient firms to leave the market, thereby affecting aggregate...

International competitiveness is often regarded as crucial for the attainment of gains from trade, which may lead policy makers to subsidize exports. This view is based on confusion between the concepts of competitive and comparative advantage. The paper argues that when comparative advantage is...

This paper investigates theoretically and empirically the endogenous investment decision of firms conditioning on export decision. It shows that theoretically, whatever the form of preferences, firms that start exporting invest more and grow more than the others. However, it is shown that when...

The recent trend of globalization has given rise to a new paradigm in international economics, i.e. the simultaneous exports and imports of a product within country or a particular industry called intra-industry trade (IIT) or two-way trade. This study examines country-levels determinants of...

The recent trend of globalization has given rise to a new paradigm in international economics, i.e. the simultaneous exports and imports of a product within country or a particular industry called intra-industry trade (IIT) or two-way trade. This study examines country-levels determinants of...

We measure the importance of increasing returns to scale and trade in medical services. Using Medicare claims data, we document that "imported" medical care -- services produced by a medical provider in a different region -- constitute about one-fifth of US healthcare consumption. Larger regions...

We measure the importance of increasing returns to scale and trade in medical services. Using Medicare claims data, we document that “imported” medical care—services produced by a medical provider in a different region—constitute about one-fifth of US healthcare consumption. Larger...

We study how financial frictions affect firm-level heterogeneity and trade. We build a model where productivity differences across monopolistically competitive firms are endogenous and depend on investment decisions at the entry stage. By increasing entry costs, financial frictions lower the...

Welfare gains from increasing product variety are an important source of the gains from international trade. Recent empirical studies have largely focused on measuring the gains from an increased variety of imports. Trade theory, however, suggests that international trade heavily affects the...