讲座人：马啸 欧美大片ppt免费大全汇丰商学院助理教授
讲座时间：2025年9月24日上午10:30-12:00
讲座地点：欧美大片ppt免费大全国家发展研究院承泽园校区245教室
讲座题目：Market Contraction and Innovation Divergence: The Impact of the US-China Trade War on Chinese Innovation
内容简介：This paper studies the impact of the US import tariff on the intensity and direction of innovation in China during the trade-war. Empirically, we break down patent abstracts into technical terms through textual analysis, enabling a comparison of innovation directions between Chinese and US firms based on the similarity of these terms. We find that greater exposure to US import tariffs lowers similarity—especially with recent US patents—and reduces Chinese patent filings. To interpret these patterns, we build a heterogeneous firm model where firms endogenously allocate innovation effort across product features and make export decisions. Tariff shocks alter innovation by shifting export demand. Quantitatively, this demand channel explains 21% of the decline in China–US innovation similarity. Moreover, changes in innovation intensity and direction reduce Chinese exports by 3.3% by 2021, with shifts in innovation direction alone contributing 14% of the decline.

 Bio：Xiao Ma received his Ph.D. in Economics from University of California, San Diego in 2021. He is currently an assistant professor at Peking University HSBC Business School. His work mainly focuses on international trade, macroeconomics, and economic development. He has published in journals such as American Economic Journal: Macroeconomics, International Economic Review, Journal of International Economics, Journal of Political Economy Macroeconomics, and Review of Economics and Statistics. He received Excellent Young Scholars Fund from the National Natural Science Foundation and WTO Essay Award for Young Economists.

组织者：（国家发展研究院 ）李力行、席天扬、徐化愚、于航、王轩、易君健、黄清扬

           （经济学院）刘冲、吴群峰、曹光宇、年永威

             （光华管理学院）张晓波、仇心诚