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Chinese Journal of Management Science ›› 2005, Vol. ›› Issue (1): 14-18.

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The Theoretical Explanation of CAPM Anomalies Based on Value Decomposition

GUO Lei, WU Chong-feng   

  1. Financial Engineering Research Center, Shanghai Jiao Tong University, Shanghai 200052, China
  • Received:2004-06-30 Revised:2004-12-15 Online:2005-02-28 Published:2012-03-07

Abstract: This paper firstly decomposes the market value of stocks into intrinsic value and market-trading value.Then it is strictly deduced that the biases of empirical β of CAPM deviates from the real one contains scale bias and firm-specific ones which fundamentally conduce CAPM anomalies.Furthermore, it demonstrates the dynamic characters of bias structure of CAPM’s empirical β. In addition,appropriate theoretic explanation is supplied for Fama and French’s three-factor model.

Key words: Value decomposition, CAPM, scale bias, firm-specific bias

CLC Number: