主讲人：谭用 副教授 南京财经大学国际经贸学院
主持人：赵瑞丽 讲师 上海对外经贸大学国际经贸学院
时间：2021年04月21日周三下午，14:00-16:00
地点：上海对外经贸大学博识楼113会议室
主办：上海对外经贸大学国际经济与贸易系
主讲人简介：
谭用，南京财经大学国际经贸学院副教授，美国范德堡大学研究员，主要研究为国际贸易、产业组织。目前侧重于异质性贸易理论和动态结构性模型等相关研究，已在《International Economic Review (IER)》、《Journal of Economic Behavior & Organization》、《Review of International Economics》《世界经济》、《中国工业经济》、《统计研究》等国内外知名期刊发表论文，参与并主持多项国家自然科学基金青年项目以及教育部重大招标课题等重大课题。
报告摘要：
This paper investigates the role of trade policy uncertainty (TPU) on resource allocation across heterogeneous Chinese producers and aggregate productivity. Using detailed Chinese data, we document that (i) simple measure of labor misallocation declined sharply as China joined the WTO and (ii) the largest declines occurred in industries with larger reductions in TPU. We rationalize these patterns with a model of input demand under policy-driven demand uncertainty among heterogeneous firms. The model implies that (i) the expected firm-level misallocation is increasing in the degree of TPU and (ii) the expected degree of misallocation is decreasing in firm size. Using China’s accession to the WTO as an exogenous change in the degree of trade policy uncertainty faced by Chinese producers, we test the model’s predictions and quantify the implied change in aggregate productivity due to the reduction in TPU. Consistent with the model predictions we find that the WTO accession reduced input misallocation by 3.2 percent in the average Chinese firms, gains were larger in industries facing greater TPU uncertainty and among China’s largest manufacturers. In aggregate the reduction in TPU induced by WTO accession accounted for 12% increase in aggregate productivity through improved resource allocation alone.