Universal Gravity

Universal Gravity
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DOI:
10.1086/704385
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发表时间:
2020-02-01
影响因子:
8.2
通讯作者:
Takahashi, Yuta
Takahashi, Yuta
中科院分区:
经济学1区
文献类型:
--
作者:
Allen, Treb;Arkolakis, Costas;Takahashi, Yuta

文献摘要

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我们研究了一大类一般均衡贸易和经济地理模型的理论属性和反事实预测。通过将总要素供给和需求函数与市场出清条件相结合,我们证明了存在性、唯一性以及给定观测到的贸易流量,这类模型中任何模型的反事实预测仅依赖于需求和供给弹性(“引力常数”)。使用一种新的“模型隐含”工具变量方法,我们估计了这些引力常数,并使用这些估计来计算美国和中国之间贸易战的影响。
We study the theoretical properties and counterfactual predictions of a large class of general equilibrium trade and economic geography models. By combining aggregate factor supply and demand functions with market-clearing conditions, we prove that existence, uniqueness, and-given observed trade flows-the counterfactual predictions of any model within this class depend only on the demand and supply elasticities ("gravity constants"). Using a new "model-implied" instrumental variables approach, we estimate these gravity constants and use these estimates to compute the impact of a trade war between the United States and China.