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Solicited and Unsolicited Credit Ratings: A Global Perspective

Author

Listed:
  • Poon, Winnie P. H.

    (Asian Development Bank Institute)

  • Chan, Kam C.

    (Asian Development Bank Institute)

Abstract

We 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, we focused on the solicited versus unsolicited ratings and sample-selection bias in the analysis. Unlike the literature, we adopted an improved method using Wooldridge’s instrumental-variable approach to mitigate the concern of specification errors in Heckman’s model. We 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, we found sample-selection bias in credit ratings. Our 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, we found that unsolicited firms, on average, seem to have lower long-term issuer ratings.

Suggested Citation

  • Poon, Winnie P. H. & Chan, Kam C., 2010. "Solicited and Unsolicited Credit Ratings: A Global Perspective," ADBI Working Papers 244, Asian Development Bank Institute.
  • Handle: RePEc:ris:adbiwp:0244
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    File URL: http://www.adbi.org/files/2010.08.24.wp244.solicited.unsolicited.credit.ratings.global.pdf
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    Cited by:

    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.

    More about this item

    Keywords

    corporate long-term issuer ratings; solicited and unsolicited;

    JEL classification:

    • D53 - Microeconomics - - General Equilibrium and Disequilibrium - - - Financial Markets
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • G24 - Financial Economics - - Financial Institutions and Services - - - Investment Banking; Venture Capital; Brokerage

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