"A Statistical Model for Credit Scoring,"

39 Pages Posted: 3 Nov 2008

See all articles by William H. Greene

William H. Greene

New York University Stern School of Business

Date Written: April 1992


We derive a model for consumer loan default and credit card expenditure. The default model is based on statistical models for discrete choice, in contrast to the usual procedure of linear discriminant analysis. The model is then extended to incorporate the default probability in a model of expected profit. The technique is applied to a large sample of applications and expenditure from a major credit card company. The nature of the data mandates the use of models of sample selection for estimation. The empirical model for expected profit produces an optimal acceptance rate for card applications which is far higher than the observed rate used by the credit card vendor based on the discriminant analysis.I am grateful to Terry Seaks for valuable comments on an earlier draft of this paper and to Jingbin Cao for his able research assistance. The provider of the data and support for this project has requested anonymity, so I must thank them as such. Their help and support are gratefully acknowledged. Participants in the applied econometrics workshop at New York University also provided useful commentary.

Suggested Citation

Greene, William H., "A Statistical Model for Credit Scoring," (April 1992). NYU Working Paper No. EC-92-29, Available at SSRN: https://ssrn.com/abstract=1293124

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