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The role of the securitization process in the expansion of subprime credit

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  • Taylor D. Nadauld
  • Shane M. Sherlund
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    Abstract

    We analyze the structure and attributes of subprime mortgage-backed securitization deals originated between 1997 and 2007. Our data set allows us to link loan-level data for over 6.7 million subprime loans to the securitization deals into which the loans were sold. We show that the securitization process, including the assignment of credit ratings, provided incentives for securitizing banks to purchase loans of poor credit quality in areas with high rates of house price appreciation. Increased demand from the secondary mortgage market for these types of loans appears to have facilitated easier credit in the primary mortgage market. To test this hypothesis, we identify an event which represents an external shock to the relative demand for subprime mortgages in the secondary market. We show that following the SEC's adoption of rules reducing capital requirements on certain broker dealers in 2004, five large deal underwriters disproportionately increased their purchasing activity relative to competing underwriters in ZIP codes with the highest realized rates of house price appreciation but lower average credit quality. We show that these loans subsequently defaulted at marginally higher rates. Finally, using the event as an instrument, we demonstrate a causal link between the demand for mortgages in the secondary mortgage market and the supply of subprime credit in the primary mortgage market.

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    Bibliographic Info

    Paper provided by Board of Governors of the Federal Reserve System (U.S.) in its series Finance and Economics Discussion Series with number 2009-28.

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    Date of creation: 2009
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    Handle: RePEc:fip:fedgfe:2009-28

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    Keywords: Mortgage-backed securities ; Subprime market;

    This paper has been announced in the following NEP Reports:

    References

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    1. Kristopher Gerardi & Andreas Lehnert & Shane M. Sherlund & Paul Willen, 2008. "Making Sense of the Subprime Crisis," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 39(2 (Fall)), pages 69-159.
    2. Pagano, Marco & Volpin, Paolo, 2008. "Securitization, Transparency and Liquidity," Working Papers 09-1, University of Pennsylvania, Wharton School, Weiss Center.
    3. Charles Himmelberg & Christopher Mayer & Todd Sinai, 2005. "Assessing High House Prices: Bubbles, Fundamentals, and Misperceptions," NBER Working Papers 11643, National Bureau of Economic Research, Inc.
    4. Robert J. Shiller, 2007. "Understanding recent trends in house prices and homeownership," Proceedings - Economic Policy Symposium - Jackson Hole, Federal Reserve Bank of Kansas City, pages 89-123.
    5. Douglas W. Diamond & Raghuram G. Rajan, 2009. "The Credit Crisis: Conjectures about Causes and Remedies," American Economic Review, American Economic Association, vol. 99(2), pages 606-10, May.
    6. Dell''Ariccia, Giovanni & Igan, Deniz & Laeven, Luc, 2008. "Credit Booms and Lending Standards: Evidence From The Subprime Mortgage Market," CEPR Discussion Papers 6683, C.E.P.R. Discussion Papers.
    7. Joshua Gallin, 2004. "The long-run relationship between house prices and rents," Finance and Economics Discussion Series 2004-50, Board of Governors of the Federal Reserve System (U.S.).
    8. Yongheng Deng & John M. Quigley & Robert Van Order, . "Mortgage Terminations, Heterogeneity and the Exercise of Mortgage Options," Zell/Lurie Center Working Papers 322, Wharton School Samuel Zell and Robert Lurie Real Estate Center, University of Pennsylvania.
    9. Paul S. Willen & Adam Hale Shapiro & Kristopher Gerardi, 2008. "Subprime Outcomes: Risky Mortgages, Homeownership Experiences, and Foreclosures," 2008 Meeting Papers 345, Society for Economic Dynamics.
    10. Christopher J. Mayer & Karen Pence, 2008. "Subprime Mortgages: What, Where, and to Whom?," NBER Working Papers 14083, National Bureau of Economic Research, Inc.
    11. Shane M. Sherlund, 2008. "The past, present, and future of subprime mortgages," Finance and Economics Discussion Series 2008-63, Board of Governors of the Federal Reserve System (U.S.).
    12. Yuliya Demyanyk & Otto Van Hemert, 2008. "Understanding the subprime mortgage crisis," Proceedings 1092, Federal Reserve Bank of Chicago.
    13. Anthony Pennington-Cross & Giang Ho, 2010. "The Termination of Subprime Hybrid and Fixed-Rate Mortgages," Real Estate Economics, American Real Estate and Urban Economics Association, vol. 38(3), pages 399-426.
    14. Robert B. Avery & Kenneth P. Brevoort & Glenn B. Canner, 2007. "Opportunities and Issues in Using HMDA Data," Journal of Real Estate Research, American Real Estate Society, vol. 29(4), pages 351-380.
    15. Adam B. Ashcraft & Til Schuermann, 2008. "Understanding the securitization of subprime mortgage credit," Staff Reports 318, Federal Reserve Bank of New York.
    16. Giovanni Dell'Ariccia & Luc Laeven & Deniz Igan, 2008. "Credit Booms and Lending Standards," IMF Working Papers 08/106, International Monetary Fund.
    17. Peter M. DeMarzo, 2005. "The Pooling and Tranching of Securities: A Model of Informed Intermediation," Review of Financial Studies, Society for Financial Studies, vol. 18(1), pages 1-35.
    18. Robert Shiller, 2007. "Understanding Recent Trends in House Prices and Home Ownership," Yale School of Management Working Papers amz2557, Yale School of Management, revised 01 Nov 2007.
    19. Jones, David, 2000. "Emerging problems with the Basel Capital Accord: Regulatory capital arbitrage and related issues," Journal of Banking & Finance, Elsevier, vol. 24(1-2), pages 35-58, January.
    20. 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.
    21. Francis A. Longstaff & Arvind Rajan, 2008. "An Empirical Analysis of the Pricing of Collateralized Debt Obligations," Journal of Finance, American Finance Association, vol. 63(2), pages 529-563, 04.
    22. Cowan, Adrian M. & Cowan, Charles D., 2004. "Default correlation: An empirical investigation of a subprime lender," Journal of Banking & Finance, Elsevier, vol. 28(4), pages 753-771, April.
    23. Chris Mayer & Karen Pence, 2008. "Subprime mortgages: what, where, and to whom?," Finance and Economics Discussion Series 2008-29, Board of Governors of the Federal Reserve System (U.S.).
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    Citations

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    Cited by:
    1. Gert Peersman & Wolf Wagner, 2014. "Shocks to Bank Lending, Risk-Taking, Securitization, and their Role for U.S. Business Cycle Fluctuations," CESifo Working Paper Series 4701, CESifo Group Munich.
    2. Kau, James B. & Keenan, Donald C. & Lyubimov, Constantine & Carlos Slawson, V., 2011. "Subprime mortgage default," Journal of Urban Economics, Elsevier, vol. 70(2-3), pages 75-87, September.
    3. Taipalus, Katja, 2012. "Detecting asset price bubbles with time-series methods," Scientific Monographs E:47/2012, Bank of Finland.
    4. Mariko Fujii, 2010. "Securitized Products, Financial Regulation, and Systemic Risk," Working Papers id:3007, eSocialSciences.
    5. Fligstein, Neil & Goldstein, Adam, 2011. "Catalyst of Disaster: Subprime Mortgage Securitization and the Roots of the Great Recession," Institute for Research on Labor and Employment, Working Paper Series qt83x2h03n, Institute of Industrial Relations, UC Berkeley.

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