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Department of Economics
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Seminar on "The Effect of Air Pollution on Migration: Evidence from China"

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Speaker Dr. ZHANG Peng
Assistant Professor
School of Accounting & Finance
The Hong Kong Polytechnic University
Date 19 January 2018 (Friday)
Time 4:00pm – 5:30pm
Venue WYL105, 1/F, Dorothy Y. L. Wong Building

Abstract

This paper looks at the effects of air pollution on migration in China using changes in the average strength of thermal inversions over five-year periods as a source of exogenous variation for medium-run air pollution levels. Our findings suggest that air pollution is responsible for large changes in inflows and outflows of migration in China. More specifically, we find that independent changes in air pollution of the magnitude that occurred in China in the course of our study (between 1996 and 2010) are capable of reducing floating migration inflows by 50 percent and of reducing population through net outmigration by 5 percent in a given county. We find that these inflows are primarily driven by well educated people at the beginning of their professional careers, leading to substantial changes in the sociodemographic composition of the population and labor force of Chinese counties. Our results are robust to different specifications, including simple counts of inversions as instruments, different weather controls, and different forms of error variance.

Biography

Peng Zhang is an Assistant Professor of Economics in the School of Accounting and Finance at the Hong Kong Polytechnic University. He obtained his Ph.D. in economics from the University of California, Santa Barbara in 2016. Peng's research interests include environmental economics, development economics, and applied microeconometrics. His current research focuses on empirically estimating the economic impacts of climate change on the Chinese economy.