题目：An Unhealthy Trade Surplus?
报告人：徐建欢 （SMU大学）
报告时间：2019年4月26日（周五） 8：30 am
地点：国际经管学院会议室（诚明楼三层）
主办方：国际经济管理学院

摘要：Recognizing that trade imbalance can generate a difference in the unit shipping cost,we show that countries with a large trade surplus (deficit) tend to systematically import (export) more of goods that are heavy relative to their value. We report cross-country evidence and evidence from ports across China that is consistent with this prediction. A particular example of goods that are relatively heavy is solid industrial waste such as scrap metals and scrap glass. We report evidence that countries with a trade surplus such as systematically import more of such goods. If pollution externality associated with industrial waste is not properly corrected by a tax, a trade surplus is also translated into more health hazard associated with imported waste. We then propose a quantitative model to evaluate and compare several public policies that are meant to address this problem.

摘要：贸易不平衡会产生单位运输成本的差异。我们的研究表明贸易顺差（逆差）较大的国家倾向于系统地进口（出口）更多相对于其价值而言较重的商品。 我们报告了与这一预测一致的跨国证据和来自中国各地港口的证据。 相对质量较大货物的一个具体例子是固体工业废物，例如废金属和废玻璃。 我们报告的证据表明，拥有贸易顺差的国家会系统地进口更多此类商品。 如果与工业废物相关的污染外部性没有通过税收适当地纠正，贸易顺差也会转化为与进口废物相关的更多健康危害。 然后，我们提出了一个定量模型来评估和比较旨在解决这个问题的几种公共政策。