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Comportamiento sectorial del mercado de renta variable en Colombia: Una aplicación del modelo CAPM

Author

Listed:
  • César Corredor Velandia
  • Rafael de Jesús Mejía Pertuz

Abstract

Este documento aplica el modelo capm para una muestra de 38 acciones (80% del mercado) que se cotizaron en la Bolsa de Valores de Colombia durante 2007 y 2008. Las acciones se agruparon en cinco sectores económicos, encontrándose los siguientes resultados: 1. Todos los sectores oscilan en torno a su media; 2. Los sectores Industrial, Inversiones/Valores y Energía/Recursos Naturales presentan una mayor volatilidad, mientras que Entidades Financieras y Comercio/Servicios son menos volátiles; 3. Todos los sectores tienen una relación positiva con los rendimientos del portafolio y se obtuvieron Betas significativos. Finalmente, se aplicó un ejercicio a nivel individual para todas las acciones y se encontró que la mitad presentan Betas significativos. Se evidenció que al usarse la agregación por sectores hay una mayor capacidad predictiva del modelo y una disminución en las dispersiones que ocurren individualmente, y se comprobó el efecto positivo que tiene el crecimiento del mercado sobre la disminución del riesgo.

Suggested Citation

  • César Corredor Velandia & Rafael de Jesús Mejía Pertuz, 2011. "Comportamiento sectorial del mercado de renta variable en Colombia: Una aplicación del modelo CAPM," Revista Economía y Región, Universidad Tecnológica de Bolívar, vol. 5(1), pages 109-144, June.
    • Handle: RePEc:col:000411:008784
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    More about this item

    Keywords

    CAPM; rendimientos; volatilidad; acciones;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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