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Promoting public health with blunt instruments: Evidence from vaccine mandates

Author

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  • Abouk, Rahi
  • Earle, John S.
  • Maclean, Johanna Catherine
  • Park, Sungbin

Abstract

We study the effect of mandates requiring COVID-19 vaccination among healthcare industry workers adopted in 2021 in the United States. There are long-standing worker shortages in the U.S. healthcare industry, pre-dating the COVID-19 pandemic. The impact of COVID-19 vaccine mandates on shortages is ex ante ambiguous. If mandates increase perceived safety of the healthcare industry, marginal workers may be drawn to healthcare, relaxing shortages. On the other hand, if marginal workers are vaccine hesitant or averse, then mandates may push workers away from the industry and exacerbate shortages. We combine monthly data from the Current Population Survey 2021 to 2022 with difference-in-differences methods to study the effects of state vaccine mandates on the probability of working in healthcare, and on employment transitions into and out of the industry. Our findings suggest that vaccine mandates may worsen healthcare workforce shortages: following adoption of a state-level mandate, the probability of working in the healthcare industry declines by 6 %. Effects are larger among workers in healthcare specific occupations, who leave the industry at higher rates in response to mandates and are slower to be replaced than workers in non-healthcare occupations. Findings suggest trade-offs faced by health policymakers seeking to achieve multiple health objectives.

Suggested Citation

  • Abouk, Rahi & Earle, John S. & Maclean, Johanna Catherine & Park, Sungbin, 2025. "Promoting public health with blunt instruments: Evidence from vaccine mandates," Labour Economics, Elsevier, vol. 96(C).
    • Handle: RePEc:eee:labeco:v:96:y:2025:i:c:s0927537125000429
    DOI: 10.1016/j.labeco.2025.102715
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    JEL classification:

    • I1 - Health, Education, and Welfare - - Health
    • I11 - Health, Education, and Welfare - - Health - - - Analysis of Health Care Markets
    • H70 - Public Economics - - State and Local Government; Intergovernmental Relations - - - General
    • J20 - Labor and Demographic Economics - - Demand and Supply of Labor - - - General

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