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Modelling the role of credit rating agencies - Do they spark off a virtuous circle?

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Author Info
Christina E. Bannier ()
Marcel Tyrell ()

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Abstract

In this paper, we propose a model of credit rating agencies using the global games framework to incorporate information and coordination problems. We introduce a refined utility function of a credit rating agency that, additional to reputation maximization, also embeds aspects of competition and feedback effects of the rating on the rated firms. Apart from hinting at explanations for several hypotheses with regard to agencies' optimal rating assessments, our model suggests that the existence of rating agencies may decrease the incidence of multiple equilibria. If investors have discretionary power over the precision of their private information, we can prove that public rating announcements and private information collection are complements rather than substitutes in order to secure uniqueness of equilibrium. In this respect, rating agencies may spark off a virtuous circle that increases the efficiency of the market outcome.

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Paper provided by Department of Finance, Goethe University Frankfurt am Main in its series Working Paper Series: Finance and Accounting with number 160.

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Date of creation: Nov 2005
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Handle: RePEc:fra:franaf:160

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Related research
Keywords: information production rating agencies coordination problems global game

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Find related papers by JEL classification:
D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information
G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies
G33 - Financial Economics - - Corporate Finance and Governance - - - Bankruptcy; Liquidation

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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  3. Richard Cantor & Frank Packer, 1994. "The credit rating industry," Quarterly Review, Federal Reserve Bank of New York, issue Sum, pages 1-26.
  4. Stephen Morris, 2001. "Political Correctness," Journal of Political Economy, University of Chicago Press, vol. 109(2), pages 231-265, April. [Downloadable!] (restricted)
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  5. Arnoud W. A. Boot & Todd T. Milbourn, 2002. "Credit Ratings as Coordination Mechanisms," William Davidson Institute Working Papers Series 457, William Davidson Institute at the University of Michigan Stephen M. Ross Business School. [Downloadable!]
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  6. Carlsson, Hans & van Damme, Eric, 1993. "Global Games and Equilibrium Selection," Econometrica, Econometric Society, vol. 61(5), pages 989-1018, September. [Downloadable!] (restricted)
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  7. Stephen Morris & Hyun Song Shin, 2002. "Social Value of Public Information," American Economic Review, American Economic Association, vol. 92(5), pages 1521-1534, December. [Downloadable!] (restricted)
  8. Lucas, Robert Jr., 1972. "Expectations and the neutrality of money," Journal of Economic Theory, Elsevier, vol. 4(2), pages 103-124, April. [Downloadable!] (restricted)
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  10. Galina Hale, 2005. "Courage to Capital? A Model of the Effects of Rating Agencies on Sovereign Debt Roll–over," The Institute for International Integration Studies Discussion Paper Series iiisdp062, IIIS. [Downloadable!]
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  11. Benabou, Roland & Laroque, Guy, 1992. "Using Privileged Information to Manipulate Markets: Insiders, Gurus, and Credibility," The Quarterly Journal of Economics, MIT Press, vol. 107(3), pages 921-58, August. [Downloadable!] (restricted)
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  12. Cantor, Richard, 2004. "An introduction to recent research on credit ratings," Journal of Banking & Finance, Elsevier, vol. 28(11), pages 2565-2573, November. [Downloadable!] (restricted)
  13. Poon, Winnie P. H., 2003. "Are unsolicited credit ratings biased downward?," Journal of Banking & Finance, Elsevier, vol. 27(4), pages 593-614, April. [Downloadable!] (restricted)
  14. Spence, A Michael, 1973. "Job Market Signaling," The Quarterly Journal of Economics, MIT Press, vol. 87(3), pages 355-74, August. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Christina E. Bannier & Falko Fecht & Marcel Tyrell, 2006. "Open-End Real Estate Funds in Germany - Genesis and Crisis," Working Paper Series: Finance and Accounting 165, Department of Finance, Goethe University Frankfurt am Main. [Downloadable!]
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