Severe Air Pollution and Labor Productivity: Evidence from Industrial Towns in China
研究中国两个制造工厂的工人日产出数据，发现PM2.5污染持续25天增加10 μg/m³会使日产出下降1%，但短期影响不显著。
We examine day-to-day fluctuations in worker-level output at two manufacturing sites in China. Ambient fine-particle (PM2.5) pollution is severe but significantly variable, largely due to exogenous atmospheric ventilation. We obtain an insignificant immediate output response from concurrent (same-shift) variation in particle pollution. We then allow worker outcomes to respond to day-to-day variation in pollution with up to 30 days of delay. We uncover statistically significant adverse output effects from more prolonged exposure, but effects are not large. A substantial + 10 μg/m 3 PM2.5 variation sustained over 25 days reduces daily output by 1 percent.