We consider a model with a continuum of industries in which agglomeration forces cause each industry to concentrate in a single country. We study the division of industries between countries and show that this division is not unique, so that even with identical countries and symmetric industries...

The large reduction in tariff rates worldwide under several rounds of the GATT is commonly credited with being one of the most notable economic policy accomplishments since World War II. However, the remarkable progress towards free trade of goods is unparalleled in trade with services where...

We generalize Krugman's (1979) 'new trade' model by allowing for an explicit production chain in which a range of tasks is performed sequentially by a number of specialized teams. We demonstrate that an increase in market size induces a deeper division of labor among these teams which leads to...

This paper reviews the new approach to international trade based on firm heterogeneity in differentiated product markets. This approach explains a variety of features exhibited in disaggregated trade data, including the higher productivity of exporters relative to non-exporters, within-industry...

Empirical studies of firms within industries consistently report substantial heterogeneity in measures of performance such as size and productivity. This paper explores the consequences of joint heterogeneity on the supply side (sellers) and the demand side (buyers) in international trade using...

We study the role of contract enforcement in shaping the dynamics of international trade at the firm level. We develop a theoretical model to describe how agents build reputations to overcome the problems created by weak enforcement of international contracts. We find that, all else equal,...

This paper examines the interdependence between innovation and imports of intermediates, and their joint impact on productivity. We do so by developing a quantitative model with heterogeneous firms and international trade where firms can invest in R&D and source inputs internationally....

India's exports of modern services have grown consistently over the last three decades and more so since 1991. Sustaining modern services exports (MSEs), which in India enjoy comparative advantage, is important for sustaining service-led growth and maintaining stability on the external sector....

We use a novel data set with verified observations of trade-induced layoffs by U.S. firms to study the interaction between firm productivity and trade liberalization as key determinants of firm-level job destruction due to trade. We find that patterns of trade-induced layoffs are broadly...

We compare samples of textiles and garments producers across groups of countries to find that, in general, productivity is far lower in Sub-Saharan Africa than it is in India. Indian manufacturers in turn are significantly less productive than their counterparts in Morocco, while producers in...