以重力为基础:具有产业规模经济的良好贸易模型

IF 6.3 1区经济学 Q1 ECONOMICS

American Economic Journal-Macroeconomics Pub Date : 2023-04-01 DOI:10.1257/mac.20190156

Konstantin Kucheryavyy, Gary Lyn, Andres Rodriguez-Clare

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引用次数: 2

摘要

本文提出了一个模型来研究产业级外部规模经济在开放经济中的作用。如果控制外部经济实力的弹性低于每个行业的贸易弹性的反比，则无摩擦贸易下的专业化与比较优势是一致的，即使有贸易摩擦，该模型也是可处理的，所有国家都从贸易中获益。外部经济会降低贸易收益，除非该国专门从事高规模经济的行业;它们会放大进一步贸易自由化带来的收益，除非它会导致低规模经济行业的专业化。(jel d24, f11, f12, f13)

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

We propose a model to study the role of industry-level external economies of scale in open economies. If the elasticity governing the strength of external economies is below the inverse of the trade elasticity 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)

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来源期刊

American Economic Journal-Macroeconomics ECONOMICS-

CiteScore

8.20

自引率

1.70%

发文量

期刊介绍： American Economic Journal: Macroeconomics focuses on studies of aggregate fluctuations and growth, and the role of policy in that context. Such studies often borrow from and interact with research in other fields, such as monetary theory, industrial organization, finance, labor economics, political economy, public finance, international economics, and development economics. To the extent that they make a contribution to macroeconomics, papers in these fields are also welcome.