Abstract
By Joshua Graff Zivin
UC-San Diego and NBER and
Matthew Neidell
Columbia University and NBER
PERC Lone Mountain Fellow
The external effects of poor environmental quality on human health are well established, leading to illnesses such as respiratory disease, lung cancer, and cardiovascular disease. While this health burden is likely to impair one’s ability to perform their job, surprisingly little research has examined the impacts of pollution on the labor market, with a few notable exceptions that have focused on absenteeism, and no evidence to date on labor productivity. In this paper we use a novel panel dataset of hourly farm worker output as recorded under piece rate contracts merged with data on environmental conditions. We estimate econometric models with worker fixed effects to relate the plausibly exogenous daily variations in ozone with worker productivity. Preliminary results provide robust evidence that ozone levels well below federal air quality standards have a significant impact on productivity.
Matthew Neidell is an Assistant Professor in the Department of Health Policy and Management, Mailman School of Public Health, at Columbia University. He was a 2010 PERC Lone Mountain Fellow
For more information on this paper, contact Matthew Neidell at mn2191@columbia.edu.

Founded 30 years ago in Bozeman, Montana, PERC—the Property and Environment Research Center—is the nation’s oldest and largest institute dedicated to improving environmental quality through property rights and markets.
PERC’s publications, each designed to resonate with specific groups, move ideas generated at PERC to broader audiences.
Research is at the heart of PERC's work, with a focus on the question: What is the link between economic growth and environmental quality?
The goal of PERC’s programs is to fully realize the vision of establishing “PERC University,” where scholars, students, policy makers, and others convene to expand the applications of free market environmentalism.
PERC's fellowships share a common goal of exposing new scholars, students, journalists, and policy makers to free market environmentalism, as well as enable scholars already familiar with FME to explore new applications.
PERC continues to publish and present a broad range of research and discussion through podcasts, videos, and other multimedia channels.