international trade with heterogeneous firms predict that industry productivity will rise as trade costs fall due to the … reallocation of activity across plants within an industry. Using disaggregated U.S. import data, we create a new measure of trade … costs over time and industries. As the models predict, productivity growth is faster in industries with falling trade costs …

international trade with heterogeneous firms predict that industry productivity will rise as trade costs fall due to the … reallocation of activity across plants within an industry. Using disaggregated U.S. import data, we create a new measure of trade … costs over time and industries. As the models predict, productivity growth is faster in industries with falling trade costs …

We use firm-level data for 15 countries and 13 manufacturing sectors to estimate firm-level productivity parameters and … to establish representative country-sector-specific empirical productivity distributions. We use these distributions … of technology in shaping international trade flows. We find that, on average, absolute advantage measured as productivity …