讲座题目：Trans-Boundary Air Pollution Spillovers: Physical Transport and Economic Costs by Distance

主讲人：傅十和，厦门大学经济学院教授

报告时间：11月6日（周五）上午9：30

报告地点：经管院A221

主办单位：武汉大学经济与管理学院经济系

内容摘要：The economic costs of trans-boundary pollution spillovers versus local effects is a necessary input in evaluating centralized versus decentralized environmental policies. Directly estimating these for air pollution is difficult because spillovers are high-frequency and vary with distance while economic outcomes are usually measured with low-frequency and local pollution is endogenous. We develop an approach to quantify local versus spillover effects as a flexible function of distance utilizing commonly-available pollution and weather data. To correct for the endogeneity of pollution, it uses a mixed two-stage least squares method that accommodates high-frequency (daily) pollution data and low-frequency (annual) outcome data. This avoids using annual pollution data which generally yields inefficient estimates. We apply the approach to estimate spillovers of particulate matter smaller than 10 micrograms (PM10) on manufacturing labor productivity in China. A oneμg/m3 annual increase in PM10 locally reduces the average firm’s annual output by CNY 45,809 while the same increase in a city 50 kilometers away decreases it by CNY 16,248. The spillovers decline quickly to CNY 2,847 at 600 kilometers and then slowly to zero at about 1,000 kilometers. The results suggest the need for supra-provincial environmental policies or Coasian prices quantified under the approach.

主讲人简介：傅十和，厦门大学经济学院教授。2005年获美国波士顿学院(Boston College)经济学博士学位。主要研究领域为城市、区域与房地产经济学、环境经济学和劳动经济学等。在Review of Economics and Statistics、Journal of Public Economics、Journal of Labor Economics、Journal of Urban Economics、Journal of Environmental Economics and Management及《经济研究》等国内外学术刊物上发表论文多篇。目前担任《中国经济问题》期刊主编。