Screening Peers Softly: Inferring the Quality of Small Borrowers

62 Pages Posted: 18 Aug 2009 Last revised: 24 Feb 2023

See all articles by Rajkamal Iyer

Rajkamal Iyer

Massachusetts Institute of Technology (MIT) - Sloan School of Management

Asim Ijaz Khwaja

Harvard University - Harvard Kennedy School (HKS); Center for Research on Pensions and Welfare Policies (CeRP); Bureau for Research and Economic Analysis of Development (BREAD); National Bureau of Economic Research (NBER)

Erzo F. P. Luttmer

Dartmouth College; National Bureau of Economic Research (NBER); IZA Institute of Labor Economics

Kelly Shue

Yale School of Management; National Bureau of Economic Research (NBER)

Date Written: August 2009

Abstract

The recent banking crisis highlights the challenges faced in credit intermediation. New online peer-to-peer lending markets offer opportunities to examine lending models that primarily cater to small borrowers and that generate more types of information on which to screen. This paper evaluates screening in a peer-to-peer market where lenders observe both standard financial information and soft, or nonstandard, information about borrower quality. Our methodology takes advantage of the fact that while lenders do not observe a borrower's exact credit score, we do. We find that lenders are able to predict default with 45% greater accuracy than what is achievable based on just the borrower's credit score, the traditional measure of creditworthiness used by banks. We further find that lenders effectively use nonstandard or soft information and that such information is relatively more important when screening borrowers of lower credit quality. In addition to estimating the overall inference of creditworthiness, we also find that lenders infer a third of the variation in the dimension of creditworthiness that is captured by the credit score. This credit-score inference relies primarily upon standard hard information, but still draws relatively more from softer or less standard information when screening lower-quality borrowers. Our results highlight the importance of screening mechanisms that rely on soft information, especially in settings targeted at smaller borrowers.

Suggested Citation

Iyer, Rajkamal and Khwaja, Asim Ijaz and Luttmer, Erzo F.P. and Shue, Kelly, Screening Peers Softly: Inferring the Quality of Small Borrowers (August 2009). NBER Working Paper No. w15242, Available at SSRN: https://ssrn.com/abstract=1454976

Rajkamal Iyer

Massachusetts Institute of Technology (MIT) - Sloan School of Management ( email )

100 Main Street
E62-416
Cambridge, MA 02142
United States

Asim Ijaz Khwaja

Harvard University - Harvard Kennedy School (HKS) ( email )

79 John F. Kennedy Street
Cambridge, MA 02138
United States
617-384-7790 (Phone)
617-496-5960 (Fax)

Center for Research on Pensions and Welfare Policies (CeRP) ( email )

Via Real Collegio, 30
Moncalieri, Turin 10024
Italy

Bureau for Research and Economic Analysis of Development (BREAD) ( email )

Duke University
Durham, NC 90097
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Erzo F.P. Luttmer (Contact Author)

Dartmouth College ( email )

Department of Economics
Hanover, NH 03755
United States

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
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IZA Institute of Labor Economics

P.O. Box 7240
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Germany

Kelly Shue

Yale School of Management ( email )

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P.O. Box 208200
New Haven, CT 06520-8200
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

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