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Solicited and Unsolicited Credit Ratings: A Global Perspective

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  • Winnie P. H. Poon

    ()

  • Kam C. Chan

    ()

Abstract

They conducted a global study of the long-term issuer ratings of nonfinancial firms from Standard and Poor's Ratings Services (S&P) for the period 1998–2003. Specifically, they focused on the solicited versus unsolicited ratings and sample-selection bias in the analysis. Unlike the literature, they adopted an improved method using Wooldridge’s instrumental-variable approach to mitigate the concern of specification errors in Heckman’s model. They found that the probability of seeking a long-term issuer rating is positively related to the size and profitability of the firm, and negatively related to the growth opportunities and debt levels of the firm. The credit rating is positively related to the sovereign rating, size, and profitability of the issuer, and negatively related to the debt ratio of the issuer. Consistent with the literature, they found sample-selection bias in credit ratings. Their findings suggest that the firms with solicited ratings seem to be more profitable, more liquid, and have lower leverage than the issuers with unsolicited ratings. After controlling for sample-selection bias and some key financial ratios, they found that unsolicited firms, on average, seem to have lower long-term issuer ratings. [ADBI Working Paper 244]

Suggested Citation

  • Winnie P. H. Poon & Kam C. Chan, 2010. "Solicited and Unsolicited Credit Ratings: A Global Perspective," Working Papers id:3112, eSocialSciences.
  • Handle: RePEc:ess:wpaper:id:3112
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    References listed on IDEAS

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    1. Patrick Roy, 2013. "Is There a Difference Between Solicited and Unsolicited Bank Ratings and, If So, Why?," Journal of Financial Services Research, Springer;Western Finance Association, vol. 44(1), pages 53-86, August.
    2. Winnie P. H. Poon & Junsoo Lee & Benton E. Gup, 2009. "Do Solicitations Matter in Bank Credit Ratings? Results from a Study of 72 Countries," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 41(2-3), pages 285-314, March.
    3. Behr, Patrick & Güttler, André, 2008. "The informational content of unsolicited ratings," Journal of Banking & Finance, Elsevier, vol. 32(4), pages 587-599, April.
    4. Heckman, James, 2013. "Sample selection bias as a specification error," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 31(3), pages 129-137.
    5. Michael Faulkender & Mitchell A. Petersen, 2006. "Does the Source of Capital Affect Capital Structure?," Review of Financial Studies, Society for Financial Studies, vol. 19(1), pages 45-79.
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    1. repec:sgm:pzwzuw:v:15:i:66:y:2017:p:64-78 is not listed on IDEAS
    2. Bernal, Oscar & Girard, Alexandre & Gnabo, Jean-Yves, 2016. "The importance of conflicts of interest in attributing sovereign credit ratings," International Review of Law and Economics, Elsevier, vol. 47(C), pages 48-66.

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    Keywords

    global; financial; Standard; Poor's Ratings Services; Wooldridge; Heckman;

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