Grounded by Gravity: A Well-Behaved Trade Model with Industry-Level Economies of Scaler

• 成果类型: Article
• 署名作者: Kucheryavyy, Konstantin; Lyn, Gary; Rodriguez-Clare, Andres
• 署名单位: University of Tokyo; HSE University (National Research University Higher School of Economics); University of California System; University of California Berkeley
• 刊物名称: AMERICAN ECONOMIC JOURNAL-MACROECONOMICS
• ISSN/ISSBN: 1945-7707
• DOI: 10.1257/mac.20190156
• 发表日期: 2023
• 页码: 372-412
• 关键词: INTERNATIONAL-TRADE; External economies; TECHNOLOGY; PRODUCTS; variety; GOODS

摘要

We propose a model to study the role of industry-level external econ-omies of scale in open economies. If the elasticity governing the strength of external economies is below the inverse of the trade elas-ticity in each industry, then specialization under frictionless trade is consistent with comparative advantage, the model is tractable even with trade frictions, and all countries gain from trade. External economies lower gains from trade except if the country specializes in industries with high scale economies, and they amplify the gains from further trade liberalization except if it leads to specialization in industries with low scale economies. (JEL D24, F11, F12, F13)