Title: What’s Missing in Environmental (Self-) Monitoring: Evidence from Strategic Shutdowns of Pollution Monitors
Speaker： Eric Zou, University of Oregon
Time： 9:00 -10:30 (Beijing Time), 15 June, 2021
Mode：Online
About the speaker：
Eric Zou is an Assistant Professor of Economics at the University of Oregon and a Faculty Research Fellow at the National Bureau of Economic Research. His research focuses on pollution prevention; topics include detecting pollution sources, monitoring polluter behavior, and measuring health consequences. Before joining Oregon, Eric was a post-doctoral associate at Cornell Institute for China Economic Research. He received a Ph.D. in Economics from the University of Illinois at Urbana-Champaign and a B.S. from East China Normal University.
Abstract:
Regulators often rely on self-reported data to determine compliance. Tolerance for missingness in self-monitoring data may create incentives for local agents to strategically decide when (not) to monitor regulated activities. This paper builds a framework to detect whether local governments skip air pollution monitoring when they expect air quality to deteriorate. We infer this expectation from air quality alerts – public advisories based on local governments’ own pollution forecasts – and test whether monitors’ sampling rates fall when these alerts occur. We first use this method to test an individual pollution monitor in Jersey City, NJ, suspected of a deliberate shutdown during the 2013 “Bridgegate” traffic jam. Consistent with strategic shutdowns, this monitor’s sampling rate drops by 33% on days that Jersey City issues pollution alerts. Building on large-scale inference tools, we then apply the method to test over 1,300 monitors across the U.S., finding at least 14 metro areas with clusters of monitors showing similar strategic behavior. We discuss imputation methods and policy responses that may help deter future strategic monitoring.
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