The effect of air pollution on body weight and obesity: Evidence from China
Olivier Deschenes a, Huixia Wang b, Si Wang c, Peng Zhang d,*
a Department of Economics, University of California, Santa Barbara, IZA, and NBER, USA
b School of Economics and Trade, Hunan University, China
c Center for Economics, Finance, and Management Studies, Hunan University, China
d School of Management and Economics, The Chinese University of Hong Kong, Shenzhen, and Shenzhen Finance Institute, China
提供了第一个评估空气污染对体重和肥胖的因果影响的研究。利用《中国健康与营养调查》(China Health and Nutrition Survey),发现空气污染对体重有显著的积极影响,该调查涵盖了1989年至2015年期间13741名成年人的详细纵向健康和社会经济信息。具体来说,过去12个月PM2.5平均浓度每增加1(1.54%),体重指数就会增加0.27%,超重率和肥胖率也会分别增加0.82和0.27个百分点。我们还发现,这些影响可以部分解释为各种行为渠道,包括身体活动减少,步行上班或上学的时间减少,睡眠减少,脂肪摄入增加。