Zusammenfassung
Bei der Subprime-Hypothekenkrise in den USA spielten sowohl Kreditauskunfteien und deren Kredit-Scores als auch Ratingagenturen eine wichtige Rolle. Zum einen war der Kredit-Score als wichtigster und oft auch einziger Maßstab für die Kreditwürdigkeit von Verbrauchern nicht geeignet, Kreditausfallrisiken zuverlässig zu prognostizieren. Wir identifizieren vier Problemfelder, die für die Schwächung des FICO®-Score und den damit verbundenen Qualitätsverlust bei der Risikoeinschätzung von Verbraucherkrediten verantwortlich sind: Reaktivität bzw. ,,gaming the system“, das Problem nicht berücksichtigter Variablen, korrelierte Kreditausfälle und Endogenität. Zum anderen sahen sich Ratingagenturen, die die verbrieften Hypothekenkreditpools unter Verwendung weniger formalisierter Verfahren bewerteten, mit Problemen der Datenqualität aufgrund schlechter Kredit-Scores konfrontiert. Ihre Prognosefähigkeit war zusätzlich durch korrelierte Kreditausfälle und Interessenkonflikte beeinträchtigt. Abschließend ziehen wir einen kurzen Vergleich zwischen der Situation in Deutschland und in den USA.
References
Agarwal S, Calvin TH (2007) Comparing the Prime and Subprime Mortgage Markets. Chicago Fed Letters, No. 241, The Federal Reserve of Chicago. http://www.chicagofed.org/publications/fedletter/cflaugust2007_241.pdf (letzter Aufruf 19.06.2009)
Ashcraft AB, Schuermann T (2008) Understanding the Securitization of Subprime Mortgage Credit. Federal Reserve Bank of New York, Staff Report no. 318
Avery RB, Calem PS, Canner GB (2004) Credit Report Accuracy and Access to Credit. Federal Reserve Bulletin. The Federal Reserve Board, Washington, D.C., pp 297–322
Avery RB, Bostic RW, Calem PS, Canner GB (2000) Credit Scoring: Statistical Issues and Evidence from Credit-Bureau Files. Real Estate Econ 28(3):523–547
Balaguy H (1996) Le crédit à la consommation en France. Que sais-je, PUF, Paris
Buck RC (1964) Reflexive predictions. Philos Sci 30(4):359–369
Calem PS, LaCour-Little M (2001) Risk-based Capital Requirements for Mortgage Loans. Working Paper 2001–60. The Federal Reserve Board, Financial and Economics Discussion Series
Cassady A, Mierzwinski E (2004) Mistakes Do Happen: A Look at Errors in Consumer Credit Reports. National Association of State PIRGs, Washington, D.C.
Census Bureau (2006) Housing Vacancies and Home Ownership. http://www.census.gov/hhes/www/housing/hvs/annual05/ann05t12.html (letzter Aufruf 19.06.2009)
Chomsisengphet S, Pennington-Cross A (2006) The evolution of the subprime mortgage market. Fed Reserv Bank St. Louis Rev 88(1):31–56
Cowan AM, Cowan CD (2004) Default correlation: an empirical investigation of a subprime lender. J Bank Finance 28:753–771
Decker M (2007) Statement of Michael Decker, Senior Managing Director, Research and Public Policy, Before the Committee on Finance United States Senate, Hearing on the Housing Decline: The Extent of the Problem and Potential Remedies
Demyanyk Y, Van Hemert O (2008) Understanding the Subprime Mortgage Crisis. http://ssrn.com/abstract=1020396 (letzter Aufruf 19.06.2009)
Deutsche Bank Research (2007) ,,Notleidende Kredite“ – eine etablierte Assetklasse: Der Handel mit Kreditportfolios in Deutschland. Aktuelle Themen 381
ECB – European Central Bank (2008) Securitisation in the Euro Area. Monthly Bulletin, Februar
Espeland WN, Sauder M (2007) Rankings and reactivity: How public measures recreate social worlds. Am J Sociol 113(1):1–40
Federal Register (2008) Federal Reserve System. 12 CFR, Part 226. Truth in Lending. Proposed Rules 73(6). http://www.federalreserve.gov/reportforms/formsreview/RegZ_20080109_ifr.pdf (letzter Aufruf 19.06.2009)
Fight A (2001) The Ratings Game. John Wiley’s and Sons, Chichester
Fitch (2007) Subprime Collateral Trends and Early Payment Defaults. U.S. Residential Mortgage Special Report. http://www.fitchratings.com (letzter Aufruf 27. April 2007)
Foster C (2007) Credit Scoring: Scoring for Success in a Turbulent Mortgage Market. http://www.fairisaac.com/NR/exeres/0556E029-CBD2-45F5-B6EB-5E954183057D,frameless.htm (letzter Aufruf 30.08.2008)
Foust D, Pressman A (2008) Credit Scores: Not-So-Magic Numbers. Business Week, 7. Februar 2008. http://www.businessweek.com/magazine/content/08_07/b4071038384407.htm?chan=magazine+channel_in+depth (letzter Aufruf 19.06.2009)
GAO (United States Government Accountability Office) (2005) Credit Reporting Literacy: Consumers Understood the Basics but Could Benefit from Targeted Educational Efforts. Report to the Congressional Committees. Government Accounting Office, Washington, D.C.
Guardia ND (2002) Consumer Credit in the European Union. ECRI Research Report No. 1, Brüssel
Hess A, Holzhausen A (2008) The structure of European mortgage markets. Allianz Dresdner Economic Research Working Paper No. 97. Frankfurt am Main
Jentzsch N, San José Riestra A (2003) Information Sharing and Its Implications for Consumer Credit Markets: United States vs. Europe. Working Paper. http://userpage.fu-berlin.de/∼jentzsch/eu-vs-us.pdf (letzter Aufruf 19.06.2009)
Keys BJ, Mukherjee T, Seru A, Vig V (2008). Did Securitization Lead to Lax Screening? Evidence From Subprime Loans. Working Paper. http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1093137 (letzter Aufruf 19.06.2009)
Löffler G (2003) The effects of estimation error on measures of portfolio credit risk. J Bank Finance 27:1427–1453
Maiello M (2007) Where was FICO? Forbes http://www.forbes.com/global/2007/0917/119.html (letzter Aufruf 19.06.2009)
Mian A, Sufi A (2008) The Consequences of Mortgage Credit Expansion: Evidence from the 2007 Mortgage Default Crisis. Manuscript, University of Chicago Business School. http://ssrn.com/abstract=1072304 (letzter Aufruf 19.06.2009)
Moody’s (2007) 2006 Review and 2007 Outlook: Home Equity ABS (Asset Backed Securities). http://www.moodys.com (letzter Aufruf 22. Januar 2007)
Morrissey J (2008) What’s Behind Those Offers to Raise Credit Scores. New York Times, 19. Januar 2008. http://www.nytimes.com/2008/01/19/business/yourmoney/19money.html?_r=1&scp=1&sq=Morrissey%20%20What%E2%80%99s%20Behind%20Those%20Offers%20to%20Raise%20Credit%20Scores&st=cse (letzter Aufruf 19.06.2009)
Peterson CL (2008) Over-Indebtedness, Predatory Lending, and the International Political Economy of Residential Home Mortgage Securitization: Comparing the U.S. Subprime Home Mortgage Lending Crisis to Home Finance in the United Kingdom, Germany, and Japan, Working Paper. http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1083184 (letzter Aufruf 19.06.2009)
Romey C, Drut B (2008) Analysis of Subprime RMBS Ratings in the USA. Risk and Trend Mapping – no. 4. Autorité des marches financiers, Paris
SEC – U.S. Securities and Exchange Commission (2008) Summary Report of Issues Identified in the Commission Staff’s Examinations of Select Credit Rating Agencies By the Staff of the Securities and Exchange Commission. http://www.sec.gov/news/studies/2008/craexamination070808.pdf (letzter Aufruf 8. Juli 2008)
SEC – U.S. Securities and Exchange Commission (2008) Annual Report on Nationally Recognized Statistical Rating Organizations: As Required by Section 6 of the Credit Rating Agency Reform Act of 2006. U.S. Securities and Exchange Commission. http://www.sec.gov/divisions/marketreg/ratingagency/nrsroannrep0608.pdf (letzter Aufruf 19.06.2009)
Shiller RJ (2008) The Subprime Solution: How Today’s Global Financial Crises Happened, and What to Do about It. Princeton University Press, Princeton Oxford
Shiller RJ (2006) Irrational Exuberance, 2nd edn. Princeton University Press, Princeton Oxford
Standard and Poor’s (2006) Corporate Rating Criteria. http://www2.standardandpoors.com/spf/pdf/products/corporateratings_2006_corp.pdf (letzter Aufruf 19.06.2009)
Straka JW (2000) A shift in the mortgage landscape: the 1990s move to automated credit evaluations. J Hous Res 11(2):207–232
Sullivan TA, Warren E, Westbrook JL (2000) The Fragile Middle Class: Americans in Debt. Yale University Press, New Haven
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Róna-Tas, Á., Hiss, S. Das Kreditrating von Verbrauchern und Unternehmen und die Subprime-Krise in den USA mit Lehren für Deutschland. Informatik Spektrum 33, 241–261 (2010). https://doi.org/10.1007/s00287-009-0360-7
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DOI: https://doi.org/10.1007/s00287-009-0360-7