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Credible Ratings

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  • Damiano, Ettore
  • Li, Hao
  • Suen, Wing

Abstract

This paper considers a model of a rating agency with multiple clients. Each client has a separate market (end-user of the rating); the only connection among them is that the underlying qualities of the clients are correlated. In the benchmark case of individual rating, the market for each client does not know the ratings for other clients. In centralized rating, the agency rates all clients together and shares the rating information among all markets. In decentralized rating, the ratings are again shared among all markets, but each client is rated by a self-interested rater of the agency with no access to the quality information of other clients. Both centralized rating and decentralized rating weakly dominate individual rating for the agency. When the underlying qualities are weakly correlated, centralized rating can dominate decentralized rating, but the reverse holds when the qualities are strongly correlated.

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Bibliographic Info

Paper provided by Vancouver School of Economics in its series Microeconomics.ca working papers with number damiano-06-01-17-01-56-45.

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Length: 40 pages
Date of creation: 17 Jan 2006
Date of revision: 17 Jan 2006
Handle: RePEc:ubc:pmicro:damiano-06-01-17-01-56-45

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Web page: http://www.economics.ubc.ca/

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  1. Matthew Gentzkow & Jesse M. Shapiro, 2006. "Media Bias and Reputation," Journal of Political Economy, University of Chicago Press, vol. 114(2), pages 280-316, April.
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  8. William Chan & Hao Li & Wing Suen, 2005. "A Signaling Theory of Grade Inflation," Working Papers tecipa-222, University of Toronto, Department of Economics.
  9. V. Crawford & J. Sobel, 2010. "Strategic Information Transmission," Levine's Working Paper Archive 544, David K. Levine.
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Cited by:
  1. Vasiliki Skreta & Laura Veldkamp, 2009. "Ratings Shopping and Asset Complexity: A Theory of Ratings Inflation," NBER Working Papers 14761, National Bureau of Economic Research, Inc.
  2. Ehlers, Tim & Schwager, Robert, 2012. "Honest grading, grade inflation and reputation," Center for European, Governance and Economic Development Research Discussion Papers 143, University of Goettingen, Department of Economics.
  3. Mariano, Beatriz, 2012. "Market power and reputational concerns in the ratings industry," Journal of Banking & Finance, Elsevier, vol. 36(6), pages 1616-1626.
  4. Ehlers, Tim & Schwager, Robert, 2012. "Honest grading, grade inflation and reputation," Center for European, Governance and Economic Development Research Discussion Papers 143, University of Goettingen, Department of Economics.
  5. Ehlers, Tim & Schwager, Robert, 2012. "Honest Grading, Grade Inflation and Reputation," Annual Conference 2012 (Goettingen): New Approaches and Challenges for the Labor Market of the 21st Century 62051, Verein für Socialpolitik / German Economic Association.
  6. 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.

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