productivity. Our model extends basic Ricardian theory to accommodate many countries, geographic barriers, and imperfect … explain basic facts about U.S. plants: (i) productivity dispersion, (ii) the productivity advantage of exporters, (iii) the … examine counterfactuals to assess the impact of various global shifts on productivity, plant entry and exit, and labor …

role in increasing productivity growth in U.S. manufacturing. Contemporaneous levels of exports and productivity are indeed … positively correlated across manufacturing industries. However, tests on industry data show causality from productivity to … exporting but not the reverse. While exporting plants have substantially higher productivity levels, we find no evidence that …

liberalization. Firm productivity in a given product is modeled as a combination of firm-level "ability" and firm …-level ability raises a firm's productivity across all products, which induces a positive correlation between a firm's intensive … (output per product) and extensive (number of products) margins. Trade liberalization fosters productivity growth within and …

aggregation problem introduces a bias into standard measures of firm productivity. We develop a theoretical model of heterogeneous …

for plant size and productivity, we find that foreign plants are significantly more likely to close than comparable …

international trade with heterogeneous firms predict that industry productivity will rise as trade costs fall due to the … costs over time and industries. As the models predict, productivity growth is faster in industries with falling trade costs …

This paper develops a general test of factor price equalization that is robust to unobserved regional productivity …