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Optimal Monetary and Prudential Policies

Author

Listed:
  • Fabrice Collard
  • Harris Dellas
  • Behzad Diba
  • Olivier Loisel

Abstract

The recent financial crisis has highlighted the interconnectedness between macroeconomic and financial stability, raising questions about how to combine monetary and prudential policies. This paper characterizes the jointly optimal monetary and prudential policies, setting the interest rate and bank-capital requirements. The source of financial fragility is the socially excessive risk taking by banks due to limited liability and deposit insurance. We provide conditions under which locally (Ramsey) optimal policy dedicates the prudential instrument to preventing inefficient risk taking by banks, and the monetary instrument to dealing with the business cycle, with the two instruments covarying either negatively, or positively and countercyclically.

Suggested Citation

  • Fabrice Collard & Harris Dellas & Behzad Diba & Olivier Loisel, 2017. "Optimal Monetary and Prudential Policies," American Economic Journal: Macroeconomics, American Economic Association, vol. 9(1), pages 40-87, January.
    • Handle: RePEc:aea:aejmac:v:9:y:2017:i:1:p:40-87
    Note: DOI: 10.1257/mac.20140139
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    More about this item

    JEL classification:

    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • G01 - Financial Economics - - General - - - Financial Crises
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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