主讲人：Chang Sun，University of Hong Kong

题目：Firm Entry and Market Interdependence: Evidence from anti-dumping tariffs on Chinese exports

主持人：余昌华、薛思帆

时间：2025年4月22日（周二）上午10:30-12:00

地点：131教室

摘要：

Using Chinese Customs data, we study how unilateral anti-dumping (AD) tariffs on Chinese products affect their exports to different destination countries. We first document that investigated products experience a decline in their total sales in both the countries that impose tariffs (focal countries) and those that do not (third countries). A decomposition exercise further suggests that the simultaneous declines in exports across countries are primarily driven by a reduction in the number of entrants. In contrast, individual exporters' sales decrease in the focal countries but increase in the third countries. To rationalize these facts, We develop an industry equilibrium framework based on firms' interdependent entry decisions to multiple markets. We show that the entry margin alone can generate cross-market policy spillovers and heterogeneous tariff responses consistent with the data. Finally, we calibrate our model and quantify the global impact of a unilateral tariff on trade and welfare.

主讲人介绍：

Chang Sun is an associate professor of Economics and Management & Strategy at the HKU Business School, the University of Hong Kong. He is also a research affiliate at the Center of Economic Studies and Ifo Institute (CESifo) in Germany. Chang’s research fields are international trade and economic geography. His research has been published in leading academic journals in economics. Chang received his BA in Economics and Finance from Tsinghua University in Beijing, China, and his MA and PhD in Economics from Princeton University in 2017.