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Optimal lockdowns under constraints

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  • Jihad C. Dagher
  • Christian Parkinson

Abstract

We present a systematic examination of the impact of frictions on optimal pandemic response, bridging the significant gap between policy recommendations and implementation. We focus in particular on constraints in testing delivery and in lockdown efficacy in the context of a canonical pandemic model. The latter is modified for a more faithful representation of lockdowns. The paper sheds light on nuanced, and sometimes counter‐intuitive, relationships. It rationalizes key but divergent findings in the literature on the extent of substitution and complementarity between lockdowns and testing. It also demonstrates remarkable robustness in lockdown policy to changes in its efficiency.

Suggested Citation

  • Jihad C. Dagher & Christian Parkinson, 2025. "Optimal lockdowns under constraints," Economic Inquiry, Western Economic Association International, vol. 63(2), pages 523-544, April.
    • Handle: RePEc:bla:ecinqu:v:63:y:2025:i:2:p:523-544
    DOI: 10.1111/ecin.13265
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