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A Watershed Moment: The Clean Water Act and Birth Weight

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  • Patrick Flynn
  • Michelle M. Marcus

Abstract

The Clean Water Act (CWA) significantly improved surface water quality, but at a cost exceeding the estimated benefits. We quantify the effect of the CWA on a direct measure of health. Using a difference-in-differences framework, we compare birth weight upstream and downstream from wastewater treatment facilities before and after CWA grant receipt. Pollution only decreased downstream from facilities required to upgrade their treatment technology, and we leverage this additional variation with a triple difference. CWA grants increased average birth weight by 8 grams.

Suggested Citation

  • Patrick Flynn & Michelle M. Marcus, 2021. "A Watershed Moment: The Clean Water Act and Birth Weight," NBER Working Papers 29152, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:29152
    Note: CH EEE
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    1. repec:ags:aaea22:335440 is not listed on IDEAS
    2. Hill, Elaine L. & Ma, Lala, 2022. "Drinking water, fracking, and infant health," Journal of Health Economics, Elsevier, vol. 82(C).
    3. Da Mata, Daniel & Emanuel, Lucas & Pereira, Vitor & Sampaio, Breno, 2023. "Climate adaptation policies and infant health: Evidence from a water policy in Brazil," Journal of Public Economics, Elsevier, vol. 220(C).
    4. Kazuki Motohashi, 2023. "Unintended Consequences of Sanitation Investment: Negative Externalities on Water Quality and Health in India," ISER Discussion Paper 1210, Institute of Social and Economic Research, Osaka University.
    5. Ponce, Anthony, 2024. "Policy Spillovers to Biodiversity: The Impacts of Interventions for Water Quality on Bird Abundance," 2024 Annual Meeting, July 28-30, New Orleans, LA 343885, Agricultural and Applied Economics Association.
    6. Wang, Dongqin & Shen, Yanni, 2022. "Sanitation and work time: Evidence from the toilet revolution in rural China," World Development, Elsevier, vol. 158(C).
    7. Flynn, Patrick & Smith, Tucker, 2022. "Rivers, lakes and revenue streams: The heterogeneous effects of Clean Water Act grants on local spending," Journal of Public Economics, Elsevier, vol. 212(C).
    8. Claire Lepault, 2023. "Is urban wastewater treatment effective in India? Evidence from water quality and infant mortality," CIRED Working Papers hal-04232407, HAL.
    9. Lucas Cain & Danae Hernandez-Cortes & Christopher Timmins & Paige Weber, 2023. "Recent Findings and Methodologies in Economics Research in Environmental Justice," CESifo Working Paper Series 10283, CESifo.

    More about this item

    JEL classification:

    • H51 - Public Economics - - National Government Expenditures and Related Policies - - - Government Expenditures and Health
    • I1 - Health, Education, and Welfare - - Health
    • Q51 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Valuation of Environmental Effects
    • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling

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