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Securitization and moral hazard: evidence from a lender cutoff rule

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  • Ryan Bubb
  • Alex Kaufman
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    Abstract

    Credit score cutoff rules result in very similar potential borrowers being treated differently by mortgage lenders. Recent research has used variation induced by these rules to investigate the connection between securitization and lender moral hazard in the recent financial crisis. However, the conclusions of such research depend crucially on understanding the origin of these cutoff rules. We offer an equilibrium model in which cutoff rules are a rational response of lenders to per-applicant fixed costs in screening. We then demonstrate that our theory fits the data better than the main alternative theory already in the literature, which supposes cutoff rules are exogenously used by securitizers. Furthermore, we use our theory to interpret the cutoff rule evidence and conclude that mortgage securitizers were in fact aware of and attempted to mitigate the moral hazard problem posed by securitization.

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    Bibliographic Info

    Paper provided by Federal Reserve Bank of Boston in its series Public Policy Discussion Paper with number 09-5.

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    Date of creation: 2009
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    Handle: RePEc:fip:fedbpp:09-5

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    Keywords: Mortgage-backed securities ; Mortgage loans ; Credit scoring systems;

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    1. Christopher Mayer & Karen Pence & Shane M. Sherlund, 2009. "The Rise in Mortgage Defaults," Journal of Economic Perspectives, American Economic Association, vol. 23(1), pages 27-50, Winter.
    2. Akerlof, George A, 1970. "The Market for 'Lemons': Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, MIT Press, vol. 84(3), pages 488-500, August.
    3. Atif Mian & Amir Sufi, 2008. "The Consequences of Mortgage Credit Expansion: Evidence from the 2007 Mortgage Default Crisis," NBER Working Papers 13936, National Bureau of Economic Research, Inc.
    4. Manuel Adelino & Kristopher Gerardi & Paul S. Willen, 2009. "Why don't lenders renegotiate more home mortgages?: redefaults, self-cures, and securitization," Public Policy Discussion Paper 09-4, Federal Reserve Bank of Boston.
    5. Gorton, Gary B. & Pennacchi, George G., 1995. "Banks and loan sales Marketing nonmarketable assets," Journal of Monetary Economics, Elsevier, vol. 35(3), pages 389-411, June.
    6. Robert B. Avery & Raphael W. Bostic & Paul S. Calem & Glenn B. Canner, 1996. "Credit risk, credit scoring, and the performance of home mortgages," Federal Reserve Bulletin, Board of Governors of the Federal Reserve System (U.S.), issue Jul, pages 621-648.
    7. George Pennacchi, . "Loan Sales and the Cost of Bank Capital," Rodney L. White Center for Financial Research Working Papers 07-87, Wharton School Rodney L. White Center for Financial Research.
    8. Diamond, Douglas W, 1984. "Financial Intermediation and Delegated Monitoring," Review of Economic Studies, Wiley Blackwell, vol. 51(3), pages 393-414, July.
    9. McCrary, Justin, 2008. "Manipulation of the running variable in the regression discontinuity design: A density test," Journal of Econometrics, Elsevier, vol. 142(2), pages 698-714, February.
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    Cited by:
    1. Adelino, Manuel & Gerardi, Kristopher & Willen, Paul S., 2013. "Why don't Lenders renegotiate more home mortgages? Redefaults, self-cures and securitization," Journal of Monetary Economics, Elsevier, vol. 60(7), pages 835-853.
    2. Vogl, Tom S., 2014. "Race and the politics of close elections," Journal of Public Economics, Elsevier, vol. 109(C), pages 101-113.
    3. Capozza, Dennis R. & Order, Robert Van, 2011. "The great surge in mortgage defaults 2006-2009: The comparative roles of economic conditions, underwriting and moral hazard," Journal of Housing Economics, Elsevier, vol. 20(2), pages 141-151, June.

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