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In search of beta

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  • Gregory, Alan
  • Hua, Shan
  • Tharyan, Rajesh

Abstract

Despite its limitations, the CAPM is a popular asset pricing model. However, the estimation of beta in the CAPM is affected by the choice of the returns frequency and firm characteristics. This study undertakes a detailed examination of the evidence for the UK and we find that the differences in beta computed from returns of various frequencies are related to size, liquidity, book-to-market and to some degree, opacity factors. One area where our conclusions might have important implications is in the regulatory use of the CAPM. Our results imply that low frequency beta estimates should, in most cases, be preferred to high frequency beta estimates.

Suggested Citation

  • Gregory, Alan & Hua, Shan & Tharyan, Rajesh, 2018. "In search of beta," The British Accounting Review, Elsevier, vol. 50(4), pages 425-441.
    • Handle: RePEc:eee:bracre:v:50:y:2018:i:4:p:425-441
    DOI: 10.1016/j.bar.2017.12.002
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    CAPM; Regulatory finance; Beta;
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