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Intangible Assets, Book-To-Market, And Common Stock Returns


  • James M. Nelson


I examine two anomalies where the Fama and French three-factor model fails to adequately explain monthly industry and index returns. Both anomalies are consistent with a bad model problem where the book-to-market factor introduces a negative bias in the intercepts. I propose the intangibles model as an alternative where the three-factor model is known to have difficulty. This alternative model, which replaces the book-to-market factor with zero investment portfolio returns based on prior investments in intangible assets, is well specified in random samples, has comparable power, and fully explains both anomalies. 2006 The Southern Finance Association and the Southwestern Finance Association.

Suggested Citation

  • James M. Nelson, 2006. "Intangible Assets, Book-To-Market, And Common Stock Returns," Journal of Financial Research, Southern Finance Association;Southwestern Finance Association, vol. 29(1), pages 21-41.
  • Handle: RePEc:bla:jfnres:v:29:y:2006:i:1:p:21-41

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