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Internal and External Effects of Social Distancing in a Pandemic

Author

Listed:
  • Jarosch, Gregor
  • Farboodi, Maryam
  • Shimer, Robert

Abstract

We use a conventional dynamic economic model to integrate individual optimization, equilibrium interactions, and policy analysis into the canonical epidemiological model. Our tractable framework allows us to represent both equilibrium and optimal allocations as a set of differential equations that can jointly be solved with the epidemiological model in a unified fashion. Quantitatively, the laissez-faire equilibrium accounts for the decline in social activity we measure in US micro-data from SafeGraph. Relative to that, we highlight three key features of the optimal policy: it imposes immediate, discontinuous social distancing; it keeps social distancing in place for a long time or until treatment is found; and it is never extremely restrictive, keeping the effective reproduction number mildly above the share of the population susceptible to the disease.

Suggested Citation

  • Jarosch, Gregor & Farboodi, Maryam & Shimer, Robert, 2020. "Internal and External Effects of Social Distancing in a Pandemic," CEPR Discussion Papers 14670, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:14670
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    More about this item

    Keywords

    Optimal social distancing; Equilibrium social distancing; Covid-19;
    All these keywords.

    JEL classification:

    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
    • I10 - Health, Education, and Welfare - - Health - - - General

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