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Medición de la volatilidad en series de tiempo financieras. Una evaluación a la tasa de cambio representativa del mercado (TRM) en Colombia

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  • Roberto A. Montenegro Robles

Abstract

Existen diferentes métodos para la medición del agrupamiento de la volatilidad en las series financieras, en las cuales el supuesto sobre la distribución del error determina la estructura de la función de log verosimilitud. En este documento se explota la flexibilidad de los modelos ARCH para capturar los agrupamientos de la volatilidad de la Tasa Representativa del Mercado TRM colombiana. Los resultados indican que el modelo MA (1) en media y el modelo GARCH (1, 1) en varianza superan otro tipo de especificación, que trate de medir el agrupamiento de la volatilidad de la TRM colombiana.******There are different methods to measure the volatility regarding clustering in financial series, in which the assumption of the error distribution determines the structure of the log-likelihood function. This paper analyses the flexibility of ARCH models to capture the volatility of TRM in Colombia. The results show that the MA (1) model in mean and GARCH (1, 1) model in variance outperform another kind of specification, which tries to measure the volatility clustering of the TRM in Colombia.

Suggested Citation

  • Roberto A. Montenegro Robles, 2010. "Medición de la volatilidad en series de tiempo financieras. Una evaluación a la tasa de cambio representativa del mercado (TRM) en Colombia," Revista Finanzas y Politica Economica, Universidad Católica de Colombia, vol. 2(1), pages 125-132, July.
  • Handle: RePEc:col:000443:009378
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    Keywords

    TRM; ARCH; GARCH; IGARCH; EGARCH;
    All these keywords.

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