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Does Greater Firm-Specific Return Variation Mean More or Less Informed Stock Pricing?

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  • Artyom Durnev
  • Randall Morck
  • Bernard Yeung
  • Paul Zarowin

Abstract

Roll [1988] observes low "R"-super-2 statistics for common asset pricing models due to vigorous firm-specific return variation not associated with public information. He concludes that this implies "either private information or else occasional frenzy unrelated to concrete information"[p. 56]. We show that firms and industries with lower market model "R"-super-2 statistics exhibit higher association between current returns and future earnings, indicating more information about future earnings in current stock returns. This supports Roll's first interpretation: higher firm-specific return variation as a fraction of total variation signals more information-laden stock prices and, therefore, more efficient stock markets. Copyright 2003 Institute of Professional Accounting, University of Chicago.

Suggested Citation

  • Artyom Durnev & Randall Morck & Bernard Yeung & Paul Zarowin, 2003. "Does Greater Firm-Specific Return Variation Mean More or Less Informed Stock Pricing?," Journal of Accounting Research, Wiley Blackwell, vol. 41(5), pages 797-836, December.
  • Handle: RePEc:bla:joares:v:41:y:2003:i:5:p:797-836
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    References listed on IDEAS

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