European Business Schools Librarian's Group

Les Cahiers de Recherche,
HEC Paris

No 1076: Do Ratings of Firms Converge? Implications for Managers, Investors and Strategy Researchers

Rodolphe Durand () and Samuel Touboul ()

Abstract: Raters of firms play an important role in assessing domains ranging from sustainability to corporate governance to best places to work. Managers, investors, and scholars increasingly rely on these ratings to make strategic decisions, invest trillions of dollars in capital and study corporate social responsibility (CSR), guided by the implicit assumption that the ratings are valid. The authors document the surprising lack of agreement across social ratings from six well-established raters. These differences remain even when we adjust for explicit differences in the definition of CSR held by different raters, implying the ratings have low validity. The authors' results suggest that users of social ratings should exercise caution in interpreting their connection to actual CSR and that raters should conduct regular evaluations of their ratings.

Keywords: N/A

30 pages, November 15, 2014

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