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Corrective Regulation with Imperfect Instruments

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  • Walther, Ansgar
  • Dávila, Eduardo

Abstract

This paper studies the optimal design of second-best corrective regulation, when some agents or activities cannot be perfectly regulated. We show that policy elasticities and Pigouvian wedges are sufficient statistics to characterize the marginal welfare impact of regulatory policies in a large class of environments. We show that the optimal second-best policy is determined by a subset of policy elasticities: leakage elasticities, and characterize the marginal value of relaxing regulatory constraints. We apply our results to scenarios with unregulated agents/activities and with uniform regulation across agents/activities. We illustrate our results in several applications.

Suggested Citation

  • Walther, Ansgar & Dávila, Eduardo, 2021. "Corrective Regulation with Imperfect Instruments," CEPR Discussion Papers 16448, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:16448
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    4. Clayton, Christopher & Schaab, Andreas, 2023. "Regulation with Externalities and Misallocation in General Equilibrium," TSE Working Papers 23-1445, Toulouse School of Economics (TSE).

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    More about this item

    Keywords

    Corrective regulation; Second-best policy; Pigouvian taxation; Policy elasticities; Leakage elasticities; Regulatory arbitrage; Financial regulation;
    All these keywords.

    JEL classification:

    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • D62 - Microeconomics - - Welfare Economics - - - Externalities

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