A Simple Model of Credit Rationing with Information Externalities
AbstractCredit-rationing model similar to Stiglitz and Weiss  is combined with the information externality model of Lang and Nakamura  to examine the properties of mortgage markets characterized by both adverse selection and information externalities. In a credit-rationing model, additional information increases lenders ability to distinguish risks, which leads to increased supply of credit. According to Lang and Nakamura, larger supply of credit leads to additional market activities and therefore, greater information. The combination of these two propositions leads to a general equilibrium model. This paper describes properties of this general equilibrium model. The paper provides another sufficient condition in which credit rationing falls with information. In that, external information improves the accuracy of equity-risk assessments of properties, which reduces credit rationing. Contrary to intuition, this increased accuracy raises the mortgage interest rate. This allows clarifying the trade offs associated with reduced credit rationing and the quality of applicant pool.
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Bibliographic InfoPaper provided by University of Connecticut, Department of Economics in its series Working papers with number 2005-11.
Length: 61 pages
Date of creation: Apr 2005
Date of revision:
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Credit rationing; Information Externalities; Adverse selection; Mortgage underwriting.;
Find related papers by JEL classification:
- C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
- R31 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Real Estate Markets, Spatial Production Analysis, and Firm Location - - - Housing Supply and Markets
- R51 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Regional Government Analysis - - - Finance in Urban and Rural Economies
This paper has been announced in the following NEP Reports:
- NEP-ALL-2005-04-24 (All new papers)
- NEP-CFN-2005-04-24 (Corporate Finance)
- NEP-GEO-2005-04-24 (Economic Geography)
- NEP-URE-2005-04-24 (Urban & Real Estate Economics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- 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.
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- Stephen Ross & AKM Rezaul Hossain, 2004. "A Direct Test of the Lang and Nakamura Hypothesis of Information Externalities over Space," Econometric Society 2004 North American Summer Meetings 398, Econometric Society.
- Paul Calem & Michael Stutzer, 1995. "The simple analytics of observed discrimination in credit markets," Working Papers 95-7, Federal Reserve Bank of Philadelphia.
- Bester, Helmut, 1985. "Screening vs. Rationing in Credit Markets with Imperfect Information," American Economic Review, American Economic Association, vol. 75(4), pages 850-55, September.
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- Rothschild, Michael & Stiglitz, Joseph E, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, MIT Press, vol. 90(4), pages 630-49, November.
- Brueckner, Jan K, 2000. "Mortgage Default with Asymmetric Information," The Journal of Real Estate Finance and Economics, Springer, vol. 20(3), pages 251-74, May.
- Ben-Shahar, Danny & Feldman, David, 2003. "Signaling-Screening Equilibrium in the Mortgage Market," The Journal of Real Estate Finance and Economics, Springer, vol. 26(2-3), pages 157-78, March-May.
- Calem Paul & Stutzer Michael, 1995. "The Simple Analytics of Observed Discrimination in Credit Markets," Journal of Financial Intermediation, Elsevier, vol. 4(3), pages 189-212, July.
- Harrison, David M., 2001. "The Importance of Lender Heterogeneity in Mortgage Lending," Journal of Urban Economics, Elsevier, vol. 49(2), pages 285-309, March.
- Avery, Robert B. & Beeson, Patricia E. & Sniderman, Mark S., 1999. "Neighborhood Information and Home Mortgage Lending," Journal of Urban Economics, Elsevier, vol. 45(2), pages 287-310, March.
- Ling, David C. & Wachter, Susan M., 1998. "Information Externalities and Home Mortgage Underwriting," Journal of Urban Economics, Elsevier, vol. 44(3), pages 317-332, November.
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