US Market Concentration and Import Competition

• 成果类型: Article
• 署名作者: Amiti, Mary; Heise, Sebastian
• 署名单位: Federal Reserve System - USA; Federal Reserve Bank - New York
• 刊物名称: REVIEW OF ECONOMIC STUDIES
• ISSN/ISSBN: 0034-6527
• DOI: 10.1093/restud/rdae045
• 发表日期: 2025
• 页码: 737-771
• 关键词: labor share; TRADE; markups; gains; GLOBALIZATION; industries; exporters; FIRMS; rise

摘要

Many studies have documented that the sales concentration of U.S. producers has risen in recent decades. In this article, we show that this increase was accompanied by more entry and growth of foreign competitors. Using confidential census data covering the universe of all firm sales in the U.S. manufacturing sector, we find that rising import competition increased concentration among U.S. firms by reallocating sales from smaller to larger U.S. firms and by causing firm exit. However, this increase in production concentration was counteracted by the expansion of foreign firms, which reduced domestic firms' share of the U.S. market inclusive of foreign firms' sales. We find that once the sales of foreign exporters are taken into account, U.S. market concentration in manufacturing was stable between 1992 and 2012.