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讲座预告 | 魏尚进获当代经济学奖,15日登大师讲堂

公布时间:2019-12-19浏览次数:481次

主题:贸易不平衡、大量进口及污染
主讲嘉宾:魏尚进教授
日期:2019年12月15日,星期日
时间:上午10:00-11:30
地点:道远楼理事会会议室
语言:英文和中文

Topic: Trade Imbalance, Heavy Imports, and Pollution
Speaker: Professor Shang-Jin Wei
Date: Sunday, December 15, 2019
Time: 10:00am-11:30am
Venue: Governing Board Meeting Room, Dao Yuan Building
Language: English and Chinese


嘉宾简介

Speaker Profile

魏尚进教授


魏尚进教授是美国哥伦比亚大学商学院及外交与公共政策学院终身讲席教授,亚洲开发银行原首席经济学家。魏教授曾经担任亚行经济研究和区域合作局局长,国际货币基金组织(IMF)研究部助理部长及研究主管,世界银行反腐败政策与研究顾问等。


魏教授在学术界和国际金融与贸易领域有着卓越成就。魏教授曾获张培刚发展经济学优秀成果奖,以表彰其与R. Koopman和王直在《美国经济评论》(2014)上发表的关于全球价值链的开创性研究。魏教授也曾获得孙冶方经济科学奖,以表彰其与张晓波创建的竞争性储蓄动机理论,并把该理论应用于解读亚洲的高储蓄模式;这一研究成果发表于《政治经济学杂志》(2011)。此外,魏教授还因为拓展了竞争性储蓄理论,将其用于深入分析企业家精神和经济增长,而与张晓波共同获得邹至庄最佳论文奖。


Professor Shang-Jin Wei is N.T. Wang Professor of Chinese Business and Economy and Professor of Finance and Economics at Columbia University’s Graduate School of Business and School of International and Public Affairs. He also served as Chief Economist of Asian Development Bank and Director General of its Economic Research and Regional Cooperation Department, Assistant Director and Chief of Trade and Investment Division at the International Monetary Fund, and Advisor at the World Bank.


Professor Wei is a noted scholar on international finance, trade, macroeconomics, and China. He is a recipient of the Sun Yefang Prize for Distinguished Contributions to Economics (for the invention of the Competitive Saving Motive published in Journal of Political Economy), the Zhang Peigang Prize for Contributions to Economics of Development (for pioneering work on measurement of global value chains published in American Economic Review), and the Gregory Chow Award for Best Research Paper.


摘要

Abstract


由于一个国家的贸易不平衡是储蓄与投资之间的差距,标准理论认为,当储蓄或投资水平出现扭曲时,贸易顺差将产生问题。本次讲座,讲者提出贸易顺差产生福利损失的新渠道。贸易不平衡通过改变单位运输成本影响贸易的构成。我们的研究表明,贸易顺差较大的国家有计划地进口更多高权值比的商品。我们探讨了该发现可能产生的两个影响。首先,贸易顺差较大的国家进口更多的工业废料和废物。其次,由于投入更多工业用料的工业往往污染性更大,所以贸易顺差越大,造成的污染越大。最后,通过定量模型,我们证明了内生运输成本渠道可以将贸易顺差转化为显著的福利损失。


As a country’s trade imbalance is the gap between savings and investment, standard theories suggest that a trade surplus is problematic only if there are distortions in the level of either savings or investment. In this lecture, we propose a new channel for a trade surplus to produce a welfare loss. Trade imbalance affects the composition of trade by altering unit shipping costs. We show that countries with a larger trade surplus systematically import more goods with a high weight-to-value ratio. We explore two novel implications of this insight. First, countries with a larger trade surplus import more industrial scrap and waste. Second, as industries using more heavy inputs tend to be more polluting, a greater trade surplus begets more pollution. Finally, with a quantitative model, we show that the endogenous shipping cost channel can translate a trade surplus into a significant welfare loss.