
En este trabajo se propone un enfoque cuadratico para el calculo del Valor en Riesgo (VaR) para un portafolio con n activos y m factores de riesgo, basado en la expansion Cornish-Fisher y en el calculo de la delta y la gamma de cada activo. Esta metodologia presenta ventajas sobre tecnicas de simulacion basadas en la valoracion total de la posicion ya que es menos intensiva computacionalmente, y sobre tecnicas basadas en aproximaciones lineales las cuales tienden a sobreestimar la posicion en riesgo cuando el portafolio contiene activos no lineales con respecto a su factor de riesgo asociado, el cual se distribuye normalmente.
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