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Diamond and Dybvig's classic theory of financial intermediation : what's missing?

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  • Edward J. Green
  • Ping Lin

Abstract

The article shows that in a finite-trader version of the Diamond and Dybvig model (1983), the ex ante efficient allocation can be implemented as a unique equilibrium. This is so even in the presence of the sequential service constraint, as emphasized by Wallace (1988), whereby the bank must solve a sequence of maximization problems as depositors contact it at different times. A three-trader example with constant relative risk-aversion utility is used in order to illustrate clearly the requirements that the sequential service constraint imposes on implementation.

Suggested Citation

  • Edward J. Green & Ping Lin, 2000. "Diamond and Dybvig's classic theory of financial intermediation : what's missing?," Quarterly Review, Federal Reserve Bank of Minneapolis, issue Win, pages 3-13.
  • Handle: RePEc:fip:fedmqr:y:2000:i:win:p:3-13:n:v.24no.1
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    References listed on IDEAS

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    1. Green, Edward J. & Lin, Ping, 2003. "Implementing efficient allocations in a model of financial intermediation," Journal of Economic Theory, Elsevier, vol. 109(1), pages 1-23, March.
    2. Stephen D. Williamson, 1987. "Costly Monitoring, Loan Contracts, and Equilibrium Credit Rationing," The Quarterly Journal of Economics, Oxford University Press, vol. 102(1), pages 135-145.
    3. Douglas W. Diamond & Philip H. Dybvig, 2000. "Bank runs, deposit insurance, and liquidity," Quarterly Review, Federal Reserve Bank of Minneapolis, issue Win, pages 14-23.
    4. Douglas W. Diamond, 1984. "Financial Intermediation and Delegated Monitoring," Review of Economic Studies, Oxford University Press, vol. 51(3), pages 393-414.
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    Keywords

    Bank failures;

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