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Medidas de riesgo financiero usando cópulas: teoría y aplicaciones

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Author Info
Oscar Becerra ()
Luis Fernando Melo ()

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Abstract

Este documento realiza una descripción de las medidas de dependencia con sus principales ventajas y desventajas y presenta a la cópula como una estructura flexible que permite caracterizar diferentes tipos de dependencia. Adicionalmente, introduce el uso de la cópula en la medición de riesgo financiero, tomando como ejemplo un portafolio compuesto por tres activos representativos del mercado colombiano. Las pruebas de desempeño o de backtesting del valoren riesgo calculado por diferentes metodologías en los años 2006 y 2007 muestra que las mejores son aquellas que modelan la dependencia en media y varianza, tales como modelos VAR-GARCH-Cópula (t) y VAR-GARCH-Cópula (normal). Las técnicas con el peor desempeño son Riskmetrics® y la basada en el supuesto de normalidad.

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Publisher Info
Paper provided by Banco de la Republica de Colombia in its series Borradores de Economia with number 489.

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Handle: RePEc:bdr:borrec:489

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Related research
Keywords: Dependencia; cópula; riesgo de mercado; riesgo de crédito; métodos de simulación de Monte Carlo. Classification JEL: C32; C52; G10.;

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This page was last updated on 2009-12-14.


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