Knowledge Diffusion, Trade, and Innovation across Countries and Sectors

• 成果类型: Article
• 署名作者: Cai, Jie; Li, Nan; Santacreu, Ana Maria
• 署名单位: Shanghai University of Finance & Economics; International Monetary Fund; Federal Reserve System - USA; Federal Reserve Bank - St. Louis
• 刊物名称: AMERICAN ECONOMIC JOURNAL-MACROECONOMICS
• ISSN/ISSBN: 1945-7707
• DOI: 10.1257/mac.20200084
• 发表日期: 2022
• 页码: 104-145
• 关键词: international technology diffusion; patent citations; spillovers; PRODUCTIVITY; geography; origins; models; IMPACT; gains; FIRMS

摘要

This paper provides a unified framework for quantifying the cross-country and cross-sector interactions among trade, inno-vation, 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 pro-duction, innovation efficiency, and knowledge spillovers. The coun-terfactual 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)