This Paper surveys the empirical literature on the economic geography of trade flows, factor prices, and the location … empirical evidence on the determinants of trade costs and the effects of these costs on trade flows. Geography is a major …

attention to the role of firms when discussing international trade. This paper summarizes key differences between trading and … non-trading firms, demonstrates how these differences present a challenge to standard trade models and shows how recent … 'heterogeneous-firm' models of international trade address these challenges. We then make use of transaction-level U.S. trade data to …

This paper examines the determinants of intra-firm trade in U.S. imports using detailed country-product data. We create … a new measure of product contractibility based on the degree of intermediation in international trade for the product …. We find important roles for the interaction of country and product characteristics in determining intra-firm trade shares …

International trade models typically assume that producers in one country trade directly with final consumers in … another. In the real world, of course, trade can involve long chains of potentially independent actors who move goods through … wholesale and retail distribution networks. These networks likely affect the magnitude and nature of trade frictions and hence …

The theoretical literature on endogenous growth and international trade suggests that comparative advantage is … in trade in manufactured goods in Germany and the United Kingdom for the period 1970–93. A measure of the extent of …

The theoretical result that there are welfare gains from trade is a central tenet of international economics. In a … class of trade models that satisfy a "gravity equation", the welfare gains from trade can be computed using only the open … economy domestic trade share and the elasticity of trade with respect to variable trade costs. The measured welfare gains from …

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 reallocations of resources following trade liberalization, and …

This paper reviews the empirical evidence on firm heterogeneity in international trade. A first wave of empirical … findings from micro data on plants and firms proposed challenges for existing models of international trade and inspired the … multi-product firms, offshoring, intra-firm trade and firm export market dynamics. …

frictions, and foreign trade. This framework emphasizes firm heterogeneity and search and matching frictions in labor markets …. It implies that the opening of trade may raise inequality and unemployment, but always raises welfare. Unilateral … country's trade partner. Unemployment benefits can alleviate the distortions in a country's labor market in some cases but not …