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Money, Financial Stability and Efficiency

Author

Listed:
  • Allen, Franklin

    (University of PA)

  • Carletti, Elena

    (European University Institute)

  • Gale, Douglas

    (NYU)

Abstract

Most analyses of banking crises assume that banks use real contracts. However, in practice contracts are nominal and this is what is assumed here. We consider a standard banking model with aggregate return risk, aggregate liquidity risk and idiosyncratic liquidity shocks. We show that, with non-contingent nominal deposit contracts, the first-best efficient allocation can be achieved in a decentralized banking system. What is required is that the central bank accommodates the demands of the private sector for fiat money. Variations in the price level allow full sharing of aggregate risks. An interbank market allows the sharing of idiosyncratic liquidity risk. In contrast, idiosyncratic (bank-specific) return risks cannot be shared using monetary policy alone; real transfers are needed.

Suggested Citation

  • Allen, Franklin & Carletti, Elena & Gale, Douglas, 2011. "Money, Financial Stability and Efficiency," Working Papers 11-28, University of Pennsylvania, Wharton School, Weiss Center.
    • Handle: RePEc:ecl:upafin:11-28
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    References listed on IDEAS

    as
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    More about this item

    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • 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
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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