Do Vehicle Emissions Testing Program Improve Air Quality?
Matthew E. Kahn
- Do Vehicle Emissions Testing Program Improve Air Quality?
- Kahn, Matthew E.
- Working papers
- Permanent URL:
- Department of Economics Discussion Papers
- Part Number:
- Department of Economics, Columbia University
- Publisher Location:
- New York
- This paper estimates the impact of the Illinois vehicle emissions testing program on ambient air quality. I find that this program has reduced ozone but has had a smaller than expected impact on carbon monoxide levels. Unlike previous environmental regulation evaluation studies, I control for the fact that regulation is not randomly assigned across geographical areas.
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