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Aplicación de la teoría de valores extremos al gerenciamiento del riesgo

Listed author(s):
  • Miguel T. Delfiner
  • Matías A. Gutiérrez Girault

Los activos en los mercados emergentes se caracterizan por una distribución de sus retornos más leptocúrtica que la de sus pares en mercados desarrollados. En este contexto se han aplicado diversas técnicas basadas en la Teoría de Valores Extremos (EVT) a un gran número de activos locales, a efectos de calcular su Valor a Riesgo (VaR). Estos resultaron ser mucho más precisos a la hora de predecir pérdidas extremas respecto a valores de VaR obtenidos bajo la hipótesis normal. Las técnicas consisten en un método estático2 y un método dinámico para calcular el VaR. Este último combina una estimación por pseudo máxima verosimilitud de un modelo AR(1) – GARCH(1,1) para la volatilidad corriente y EVT para estimar la cola de la distribución de la innovación del modelo.

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Paper provided by Universidad del CEMA in its series CEMA Working Papers: Serie Documentos de Trabajo. with number 217.

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Date of creation: Jul 2002
Handle: RePEc:cem:doctra:217
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  1. Bollerslev, Tim, 1986. "Generalized autoregressive conditional heteroskedasticity," Journal of Econometrics, Elsevier, vol. 31(3), pages 307-327, April.
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