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MBS ratings and the mortgage credit boom

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Abstract

We study credit ratings on subprime and Alt-A mortgage-backed-securities (MBS) deals issued between 2001 and 2007, the period leading up to the subprime crisis. The fraction of highly rated securities in each deal is decreasing in mortgage credit risk (measured either ex ante or ex post), suggesting that ratings contain useful information for investors. However, we also find evidence of significant time variation in risk-adjusted credit ratings, including a progressive decline in standards around the MBS market peak between the start of 2005 and mid-2007. Conditional on initial ratings, we observe underperformance (high mortgage defaults and losses and large rating downgrades) among deals with observably higher risk mortgages based on a simple ex ante model and deals with a high fraction of opaque low-documentation loans. These findings hold over the entire sample period, not just for deal cohorts most affected by the crisis.

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  • Adam B. Ashcraft & Paul Goldsmith-Pinkham & James Vickery, 2010. "MBS ratings and the mortgage credit boom," Staff Reports 449, Federal Reserve Bank of New York.
    • Handle: RePEc:fip:fednsr:449
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    1. Antoine Faure‐Grimaud & Eloïc Peyrache & Lucía Quesada, 2009. "The ownership of ratings," RAND Journal of Economics, RAND Corporation, vol. 40(2), pages 234-257, June.
    2. Bar-Isaac, Heski & Shapiro, Joel, 2013. "Ratings quality over the business cycle," Journal of Financial Economics, Elsevier, vol. 108(1), pages 62-78.
    3. Nadauld, Taylor D. & Sherlund, Shane M., 2009. "The Role of the Securitization Process in the Expansion of Subprime Credit," Working Paper Series 2009-9, Ohio State University, Charles A. Dice Center for Research in Financial Economics.
    4. Skreta, Vasiliki & Veldkamp, Laura, 2009. "Ratings shopping and asset complexity: A theory of ratings inflation," Journal of Monetary Economics, Elsevier, vol. 56(5), pages 678-695, July.
    5. Bo Becker & Todd Milbourn, 2008. "Reputation and competition: evidence from the credit rating industry," Harvard Business School Working Papers 09-051, Harvard Business School, revised Sep 2010.
    6. Yuliya Demyanyk & Otto Van Hemert, 2011. "Understanding the Subprime Mortgage Crisis," Review of Financial Studies, Society for Financial Studies, vol. 24(6), pages 1848-1880.
    7. Haughwout, Andrew & Peach, Richard & Tracy, Joseph, 2008. "Juvenile delinquent mortgages: Bad credit or bad economy?," Journal of Urban Economics, Elsevier, vol. 64(2), pages 246-257, September.
    8. Amato, Jeffery D. & Furfine, Craig H., 2004. "Are credit ratings procyclical?," Journal of Banking & Finance, Elsevier, vol. 28(11), pages 2641-2677, November.
    9. Arnoud W. A. Boot & Todd T. Milbourn & Anjolein Schmeits, 2006. "Credit Ratings as Coordination Mechanisms," Review of Financial Studies, Society for Financial Studies, vol. 19(1), pages 81-118.
    10. Doron Kliger & Oded Sarig, 2000. "The Information Value of Bond Ratings," Journal of Finance, American Finance Association, vol. 55(6), pages 2879-2902, December.
    11. Case, Karl E & Shiller, Robert J, 1989. "The Efficiency of the Market for Single-Family Homes," American Economic Review, American Economic Association, vol. 79(1), pages 125-137, March.
    12. Joshua Coval & Jakub Jurek & Erik Stafford, 2009. "The Economics of Structured Finance," Journal of Economic Perspectives, American Economic Association, vol. 23(1), pages 3-25, Winter.
    13. 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.
    14. Mathis, Jérôme & McAndrews, James & Rochet, Jean-Charles, 2009. "Rating the raters: Are reputation concerns powerful enough to discipline rating agencies?," Journal of Monetary Economics, Elsevier, vol. 56(5), pages 657-674, July.
    15. Geetesh Bhardwaj & Rajdeep Sengupta, 2008. "Where's the smoking gun? a study of underwriting standards for US subprime mortgages," Working Papers 2008-036, Federal Reserve Bank of St. Louis.
    16. Efraim Benmelech & Jennifer Dlugosz, 2010. "The Credit Rating Crisis," NBER Chapters, in: NBER Macroeconomics Annual 2009, Volume 24, pages 161-207, National Bureau of Economic Research, Inc.
    17. Cantor, Richard, 2001. "Moody's investors service response to the consultative paper issued by the Basel Committee on Bank Supervision "A new capital adequacy framework"," Journal of Banking & Finance, Elsevier, vol. 25(1), pages 171-185, January.
    18. Darren J. Kisgen & Philip E. Strahan, 2009. "Do Regulations Based on Credit Ratings Affect a Firm's Cost of Capital?," NBER Working Papers 14890, National Bureau of Economic Research, Inc.
    19. Mariano, Beatriz, 2008. "Do reputational concerns lead to reliable ratings?," LSE Research Online Documents on Economics 24433, London School of Economics and Political Science, LSE Library.
    20. Opp, Christian C. & Opp, Marcus M. & Harris, Milton, 2013. "Rating agencies in the face of regulation," Journal of Financial Economics, Elsevier, vol. 108(1), pages 46-61.
    21. Ashcraft, Adam B. & Schuermann, Til, 2008. "Understanding the Securitization of Subprime Mortgage Credit," Foundations and Trends(R) in Finance, now publishers, vol. 2(3), pages 191-309, June.
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    More about this item

    Keywords

    Credit ratings; Mortgages; Mortgage-backed securities; Subprime mortgage; Financial crises; Financial risk management;
    All these keywords.

    JEL classification:

    • G01 - Financial Economics - - General - - - Financial Crises
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G24 - Financial Economics - - Financial Institutions and Services - - - Investment Banking; Venture Capital; Brokerage

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