Bank Lending Policy, Credit Scoring and Value at Risk
In this paper we apply a bivariate probit model to investigate the implications of bank lending policy. In the first equation we model the bank´s decision to grant a loan, in the second the probability of default. We confirm that banks provide loans in a way that is not consistent with default risk minimization. The lending policy must thus either be inefficient or be the result of some other type of optimizing behavior than expected profit maximization. Value at Risk, being a value weighted sum of individual risks, provides a more adequate measure of monetary losses on a portfolio of loans than default risk. We derive a Value at Risk measure for the sample portfolio of loans and show how analyzing this can enable financial institutions to evaluate alternative lending policies on the basis of their implied credit risk and loss rate, and make lending rates consistent with the implied Value at Risk.
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|Date of creation:||01 Jul 1998|
|Date of revision:|
|Publication status:||Forthcoming in Journal of Banking and Finance.|
|Contact details of provider:|| Postal: Sveriges Riksbank, SE-103 37 Stockholm, Sweden|
Phone: 08 - 787 00 00
Fax: 08-21 05 31
Web page: http://www.riksbank.com/
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- Bernanke, Ben & Gertler, Mark, 1995.
"Inside the Black Box: The Credit Channel of Monetary Policy Transmission,"
95-15, C.V. Starr Center for Applied Economics, New York University.
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"Bank Lending Policy, Credit Scoring and the Survival of Loans,"
Working Paper Series
154, Sveriges Riksbank (Central Bank of Sweden).
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- Stephen D. Williamson, 1987.
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Oxford University Press, vol. 102(1), pages 135-145.
- Stephen D. Williamson, 1984. "Costly Monitoring, Loan Contracts and Equilibrium Credit Rationing," Working Papers 572, Queen's University, Department of Economics.
- Stiglitz, Joseph E & Weiss, Andrew, 1981. "Credit Rationing in Markets with Imperfect Information," American Economic Review, American Economic Association, vol. 71(3), pages 393-410, June.
- Boyes, William J. & Hoffman, Dennis L. & Low, Stuart A., 1989. "An econometric analysis of the bank credit scoring problem," Journal of Econometrics, Elsevier, vol. 40(1), pages 3-14, January.
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