The Impact of Pollution on Worker Productivity
利用农业工人计件合同下的生产力数据，研究发现低于联邦空气质量标准的臭氧水平显著降低生产力，表明环保可视为人力资本投资和促进经济增长的工具。
This paper assesses the impact of pollution on worker productivity by relating exogenous daily variations in ozone with productivity of agricultural workers as recorded under piece rate contracts. We find robust evidence that ozone levels well below federal air quality standards have a significant impact on productivity. These results suggest that, in contrast to common characterizations of environmental protection as a tax on producers, environmental protection can also be viewed as an investment in human capital, and thus a tool for promoting economic growth.