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 …

, measured firm productivity will reflect both true differences in productivity and non-random decisions about which products to … to characterize the direction and magnitude of the resulting bias in productivity and to trace the implications for … provides a new source of reallocation and leads to biased measures of deregulation’s impact on firm and aggregate productivity …