Moral hazard in the Diamond-Dybvig model of banking
We modify the Diamond-Dybvig model studied in Green and Lin to incorporate a self-interested banker who has a private record-keeping technology. A public record-keeping device does not exist. We find that there is a trade-off between sophisticated contracts that possess relatively good risk-sharing properties but allocate resources inefficiently for incentive reasons, and simple contracts that possess relatively poor risk-sharing properties but economize on the inefficient use of resources. While this trade-off depends on model parameters, we find that simple contracts prevail under a wide range of empirically plausible parameter values. Although moral hazard in banking may simplify the optimal structure of deposit liabilities, this simple structure does not enhance the prospect of bank runs.
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- Andolfatto, David & Nosal, Ed & Wallace, Neil, 2007.
"The role of independence in the Green-Lin Diamond-Dybvig model,"
Journal of Economic Theory,
Elsevier, vol. 137(1), pages 709-715, November.
- David Andolfatto & Ed Nosal & Neil Wallace, 2006. "The role of independence in the Green-Lin Diamond-Dybvig model," Working Paper 0615, Federal Reserve Bank of Cleveland.
- 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.
- Edward J. Green, 1995. "Implementing Efficient Allocations in a Model of Financial Intermediation," Meeting papers 9506001, EconWPA.
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- James Peck & Karl Shell, 2003. "Bank Portfolio Restrictions and Equilibrium Bank Runs," Levine's Bibliography 666156000000000077, UCLA Department of Economics.
- Karl Shell & James Peck, 2004. "Bank Portfolio Restrictions and Equilibrium Bank Runs," 2004 Meeting Papers 359, Society for Economic Dynamics.
- James Peck & Karl Shell, 2003. "Equilibrium Bank Runs," Journal of Political Economy, University of Chicago Press, vol. 111(1), pages 103-123, February.
- Peck, James & Shell, Karl, 2001. "Equilibrium Bank Runs," Working Papers 01-10r, Cornell University, Center for Analytic Economics.
- Calomiris, Charles W & Kahn, Charles M, 1991. "The Role of Demandable Debt in Structuring Optimal Banking Arrangements," American Economic Review, American Economic Association, vol. 81(3), pages 497-513, June.
- Neil Wallace, 1988. "Another attempt to explain an illiquid banking system: the Diamond and Dybvig model with sequential service taken seriously," Quarterly Review, Federal Reserve Bank of Minneapolis, issue Fall, pages 3-16.
- Krasa, Stefan & Villamil, Anne P., 1992. "Monitoring the monitor: An incentive structure for a financial intermediary," Journal of Economic Theory, Elsevier, vol. 57(1), pages 197-221. Full references (including those not matched with items on IDEAS)
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