摘要:This paper examines the impact of the US-China trade war on the innovation intensity and direction in China. Using a textual analy
人大国发院“理论与政策”研讨会
(第208期)
The Impact of the Trade War: Divergence in Chinese and U.S. Innovations in the Post-Conflict Era
贸易战的影响:后冲突时代中美创新的路径分化
主 讲:陶涵毅(上海科技大学创业与管理学院)
主 持:秦 聪(中国人民大学国家发展与战略研究院)
时 间:2025年5月23日(星期五)14:00-15:30
地 点:立德教学楼11层1133会议室
报告摘要:
This paper examines the impact of the US-China trade war on the innovation intensity and direction in China. Using a textual analysis method to break down patent abstracts into technical terms, we compare the innovation directions of Chinese and US firms by evaluating the similarity of these terms in their patents. We find that increased exposure to US import tariffs reduces this similarity, particularly with more recent US patents. Additionally, we observe that higher US import tariffs lead to a decrease in patent filings in China. To explain these effects, particularly in terms of innovation direction, we develop a quantitative model in which firms make endogenous decisions about their innovation efforts across different product features (corresponding to technical terms in patents) and also determine their export strategies. The quantification analysis shows that the demand channel accounts for 48% of the decline in China-US innovation similarity due to tariff shocks. Moreover, changes in innovation intensity and direction choices following the trade war lead to a 6% reduction in Chinese firms' exports by 2021, with direction alone responsible for 1.68%.
本文研究了中美贸易战对中国创新强度与方向的影响。通过采用文本分析方法将专利摘要分解为技术术语,我们通过评估中企与美企专利中这些术语的相似性来比较双方的创新方向。研究发现,美国进口关税增加会降低这种相似性,尤其是与近期美国专利的相似度。此外,我们观察到美国加征关税导致中国专利申请量下降。为解释这些效应(特别是创新方向变化),我们构建了一个量化模型:企业内生决定跨产品特征(对应专利中的技术术语)的创新投入,并同时制定出口策略。量化分析表明,需求渠道能解释关税冲击导致中美创新相似度下降的48%。此外,贸易战后创新强度与方向选择的改变使中企出口额至2021年下降6%,其中仅方向变化就贡献了1.68个百分点。
报告人简介:
陶涵毅,上海科技大学创业与管理学院助理教授,主要研究方向包括宏观经济学,国际贸易,企业创新。学术研究发表在Journal of International Economics等权威期刊。主持国家自科基金青年项目、上海市浦江人才计划等多个项目。
审核:秦聪
文章来源:人大国发院
来源:人大国发院一点号