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Contrastacion De Metodologías Para El Cálculo De Beta De Mercado: El Caso De España

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  • Fernando Rubio

    (FERNCAPITAL S.A.)

Abstract

EXTRACTO: El objetivo de esta investigación es contrastar las dos metodologías que han sido utilizadas normalmente para el cálculo de beta de mercado. Ellas son: la “tradicional” propuesta por Black, Jensen y Scholes (1972) y por Fama y MacBeth (1973); y la denominada “impar-par” propuesta por Ball, Brown y Officer (1976). Se quiere verificar posibles diferencias en los betas obtenidos de cara a la utilización del CAPM. En conclusión, al parecer la metodología no incidiría en el valor de las betas obtenidas. Con una u otra metodología los resultados son muy similares. En consecuencia, es poco probable también que la metodología utilizada para calcular beta incida en la efectividad de beta para explicar los retornos esperados en el esquema del CAPM. ABSTRACT: The aim of this investigation is to contrast the two methodologies that have been normally utilized for the calculation of market beta. They are: the “traditional” proposed by Black, Jensen and Scholes (1972) and by Fama and MacBeth (1973); and the so called “impar- par” proposed by Ball, Brown and Officer (1976). The goal is to verify possible differences in the obtained betas with a view toward the utilization of the CAPM. In conclusion, it seems that the methodology would not impact in the value of the obtained betas. With one or another methodology the results are very similar. Consequently, it is also little probable that the methodology utilized to calculate beta impact in the effectiveness of beta to explain the expected returns in the world of the CAPM.

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File URL: http://128.118.178.162/eps/fin/papers/0405/0405030.pdf
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Bibliographic Info

Paper provided by EconWPA in its series Finance with number 0405030.

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Length: 15 pages
Date of creation: 26 May 2004
Date of revision:
Handle: RePEc:wpa:wuwpfi:0405030

Note: Type of Document - pdf; pages: 15
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Web page: http://128.118.178.162

Related research

Keywords: España; CAPM; metodología; beta; acciones;

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  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.
  2. Rubio, Gonzalo, 1988. "Further international evidence on asset pricing : The case of the Spanish capital market," Journal of Banking & Finance, Elsevier, vol. 12(2), pages 221-242, June.
  3. Dimson, Elroy, 1979. "Risk measurement when shares are subject to infrequent trading," Journal of Financial Economics, Elsevier, vol. 7(2), pages 197-226, June.
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