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¿Existe el Enigma de la Prima de Riesgo en el Mercado Bursátil Colombiano? 1993-2002

Author

Listed:
  • Isabel Cristina Montoya Osorio
  • Juan Manuel Restrepo Puerta

Abstract

ResumenEn este estudio se busca determinar la existencia del enigma de la prima de riesgo para las acciones en el mercado bursátil colombiano y estimar el coeficiente de aversión al riesgo del inversionista representativo con base en los rendimientos ofrecidos por dicho mercado. El período de análisis está comprendido entre diciembre de 1993 y diciembre de 2002. Con este fin se utiliza el modelo de valoración de activos con agente representativo con dos funciones de utilidad: CRRA y formación del hábito. Se concluye que, a diferencia de la evidencia reportada en diversos mercados desarrollados y en desarrollo, en el mercado colombiano no se encuentra evidencia de la existencia del enigma. Tal como es de esperarse por la baja volatilidad del consumo y por la baja covarianza entre ésta y la tasa de rendimiento de las acciones, el coeficiente de aversión al riesgo característico del inversionista colombiano es cercano a cero.Abstract:In this study we search for evidence of the existence of the equity premium puzzle in the colombian stock market and to estimate the risk aversion of a representative investor in this market. This study covers the period December 1993 - January 2002. For that propose we used the asset pricing model with a representative agent based on two different utility functions: CRRA and habit formation. We conclude that different than of the reported evidence in several developed and developing markets, in the Colombian stock market there is no evidence of the puzzle. As it is expected from by the low volatility of consumption and the low covariance between this one and the returns from stocks, the risk aversion coefficient characteristic of an investor in this market is close to zero.

Suggested Citation

  • Isabel Cristina Montoya Osorio & Juan Manuel Restrepo Puerta, 2004. "¿Existe el Enigma de la Prima de Riesgo en el Mercado Bursátil Colombiano? 1993-2002," Revista Ecos de Economía, Universidad EAFIT, October.
  • Handle: RePEc:col:000442:010787
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    Keywords

    Prima de riesgo; Riesgo; Activo financiero; Aversión al riesgo; Inversión; Mercado bursátil colombiano; Equity Premium; Equity Premium Puzzle; Financial Risk; Risk Aversion; Colombian Stock Exchange;
    All these keywords.

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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