Moral hazard in the Diamond-Dybvig model of banking

David Andolfatto () and Ed Nosal

No 623, Working Papers (Old Series) from Federal Reserve Bank of Cleveland

Abstract: 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.

Keywords: Contracts; Financial crises; Banks and banking (search for similar items in EconPapers)
Date: 2006
New Economics Papers: this item is included in nep-ban
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Related works:
Working Paper: Moral Hazard in the Diamond-Dybvig Model of Banking (2007)
Working Paper: Moral Hazard in the Diamond-Dybvig Model of Banking (2006)
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Persistent link: https://EconPapers.repec.org/RePEc:fip:fedcwp:0623

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DOI: 10.26509/frbc-wp-200623

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