结构引力的演变：贸易的主力模型

IF 1.7 4区经济学 Q2 ECONOMICS

Contemporary Economic Policy Pub Date : 2024-08-11 DOI:10.1111/coep.12666

Yoto V. Yotov

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引用次数: 0

摘要

引力模型是贸易的主要模型。然而，许多经济学家仍将引力模型视为一个简化的估算方程，并在没有理论指导的情况下加以应用，而另一些经济学家则对其在反事实预测方面的实用性持怀疑态度。本文概述了引力的历史演变，从理论应用到可计算一般均衡模型的估算，该模型可以嵌套在更复杂的框架中。在此过程中，我将讨论关于引力的一些误解，总结当前关于引力估计的建议，强调引力之所以如此成功的特性，并回顾相关文献的最新贡献。

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The evolution of structural gravity: The workhorse model of trade

The gravity model is the workhorse model of trade. Yet, many economists still view gravity as a reduced-form estimating equation and apply it without guidance from theory, while others are skeptical about its usefulness for counterfactual projections. This paper offers a historical overview of the evolution of gravity, from an a-theoretical application to an estimating computable general equilibrium model, which can be nested in more complex frameworks. Along the way, I address some misconceptions about gravity, summarize the current recommendations for gravity estimations, highlight properties that have made gravity so successful, and review the latest contributions to the related literature.

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来源期刊

Contemporary Economic Policy Multiple-

CiteScore

3.10

自引率

6.70%

发文量

期刊介绍： Contemporary Economic Policy publishes scholarly economic research and analysis on issues of vital concern to business, government, and other decision makers. Leading western scholars, including three Nobel laureates, are among CEP"s authors. The objectives are to communicate results of high quality economic analysis to policymakers, focus high quality research and analysis on current policy issues of widespread concern, increase knowledge among economists of features of the economy key to understanding the impact of policy, and to advance methods of policy analysis.