反事实思维
经济
扩散
福利
库存(枪支)
比较优势
内生增长理论
自由化
国际贸易
国际经济学
产业组织
业务
人力资本
市场经济
哲学
工程类
物理
认识论
热力学
机械工程
作者
Jie Cai,Nan Li,Ana María Santacreu
出处
期刊:American Economic Journal: Macroeconomics
[American Economic Association]
日期:2021-12-30
卷期号:14 (1): 104-145
被引量:56
摘要
This paper provides a unified framework for quantifying the cross-country and cross-sector interactions among trade, innovation, and knowledge diffusion. This framework is used to study the effect of trade liberalization in an endogenous growth model in which comparative advantage and the stock of knowledge are determined by innovation and diffusion. The model is calibrated to match observed cross-country and cross-sector heterogeneity in production, innovation efficiency, and knowledge spillovers. The counterfactual analysis shows that a reduction in trade costs induces a reallocation of R&D and comparative advantage across sectors. Heterogeneous knowledge diffusion amplifies the specialization effects of trade-induced R&D reallocation, becoming an important source of welfare. (JEL F12, F14, O33, O34, O41)
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