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Asymmetric Information and Bank Runs

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Author Info
Gu, Chao (U of Missouri, Columbia)
Abstract

It is known that sunspots can trigger panic-based bank runs and that the optimal banking contract can tolerate panic-based runs. The existing literature assumes that these sunspots are based on a publicly observed extrinsic randomizing device. In this paper, I extend the analysis of panic-based runs to include an asymmetric-information, extrinsic randomizing device. Depositors observe different, but correlated, signals on the stability of the bank. I find that if the signals that depositors obtain are highly correlated, there exists a correlated equilibrium for some demand deposit contracts. In this equilibrium, either a full bank run, or a partial bank run, or non bank run occurs depending on the realization of the signals. Computed examples indicate that in some economies, a demand-deposit contract that tolerates bank runs and partial bank runs is optimal; while in some other economies a run-proof contract is optimal.

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Paper provided by Cornell University, Center for Analytic Economics in its series Working Papers with number 07-14.

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Date of creation: Oct 2007
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Handle: RePEc:ecl:corcae:07-14

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Find related papers by JEL classification:
D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information
G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Mortgages
P11 - Economic Systems - - Capitalist Systems - - - Planning, Coordination, and Reform

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  1. Aumann, Robert J, 1987. "Correlated Equilibrium as an Expression of Bayesian Rationality," Econometrica, Econometric Society, vol. 55(1), pages 1-18, January. [Downloadable!] (restricted)
  2. Ennis, Huberto M. & Keister, Todd, 2006. "Bank runs and investment decisions revisited," Journal of Monetary Economics, Elsevier, vol. 53(2), pages 217-232, March. [Downloadable!] (restricted)
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  3. Diamond, Douglas W & Dybvig, Philip H, 1983. "Bank Runs, Deposit Insurance, and Liquidity," Journal of Political Economy, University of Chicago Press, vol. 91(3), pages 401-19, June. [Downloadable!] (restricted)
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  4. James Peck & Karl Shell, 2003. "Equilibrium Bank Runs," Journal of Political Economy, University of Chicago Press, vol. 111(1), pages 103-123, February. [Downloadable!] (restricted)
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