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Is beta still alive? Conclusive evidence from the Swiss stock market

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Author Info
Dusan Isakov

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Abstract

Recent evidence from Fama and French (1992, 1996) and others shows that betas and returns are not related empirically. They interpret this as evidence against the validity of the capital asset pricing model and conclude that the beta is not a good measure of risk. This paper claims that usual tests do not leave much opportunity for beta to appear as a useful variable capable of explaining returns, because tests are often performed in periods where the average realized market excess return is not significantly different from zero. In order to assess the usefulness of beta, an alternative approach that dissociates results obtained in periods where the realized market excess is positive from those where it is negative is proposed. These new tests are then applied to a representative sample of the Swiss stock market over the period 1983-1991. The different results unambiguously support the fact that beta is a good measure of risk, because beta is strongly related to the cross-section of realized returns. These results also confirm that there are no arbitrage opportunities on this market.

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Publisher Info
Article provided by Taylor and Francis Journals in its journal The European Journal of Finance.

Volume (Year): 5 (1999)
Issue (Month): 3 (September)
Pages: 202-212
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Handle: RePEc:taf:eurjfi:v:5:y:1999:i:3:p:202-212

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Keywords: Capital Asset Pricing Model Risk Stock Market

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Fama, Eugene F & French, Kenneth R, 1992. " The Cross-Section of Expected Stock Returns," Journal of Finance, American Finance Association, vol. 47(2), pages 427-65, June. [Downloadable!] (restricted)
  2. Modigliani, Franco. & Pogue, G. A., 1973. "A test of the capital asset pricing model on European stock markets," Working papers 667-73., Massachusetts Institute of Technology (MIT), Sloan School of Management. [Downloadable!]
  3. Affleck-Graves, J. F. & Bradfield, D. J., 1993. "An examination of the power of Univariate tests of the CAPM: A simulation approach," Journal of Economics and Business, Elsevier, vol. 45(1), pages 17-33, February. [Downloadable!] (restricted)
  4. Fama, Eugene F & MacBeth, James D, 1973. "Risk, Return, and Equilibrium: Empirical Tests," Journal of Political Economy, University of Chicago Press, vol. 81(3), pages 607-36, May-June. [Downloadable!] (restricted)
  5. Gibbons, Michael R & Ross, Stephen A & Shanken, Jay, 1989. "A Test of the Efficiency of a Given Portfolio," Econometrica, Econometric Society, vol. 57(5), pages 1121-52, September. [Downloadable!] (restricted)
  6. Ravi Jagnnathan & Ellen R. McGrattan, 1995. "The CAPM debate," Quarterly Review, Federal Reserve Bank of Minneapolis, issue Fall, pages 2-17. [Downloadable!]
  7. Black, Fischer, 1972. "Capital Market Equilibrium with Restricted Borrowing," Journal of Business, University of Chicago Press, vol. 45(3), pages 444-55, July. [Downloadable!] (restricted)
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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Andrew Ang & Joseph Chen & Yuhang Xing, 2005. "Downside Risk," NBER Working Papers 11824, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  2. Gordon Y. N. Tang & Wai Cheong Shum, 2006. "Risk-return relationships in the Hong Kong stock market: revisit," Applied Financial Economics, Taylor and Francis Journals, vol. 16(14), pages 1047-1058, October. [Downloadable!] (restricted)
  3. Asgharian, Hossein & Hansson, Björn, 2002. "Cross Sectional Analysis of the Swedish Stock Market," Working Papers 2002:19, Lund University, Department of Economics. [Downloadable!]
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