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Estimation of Market Risk Measures in Mexican Financial Time Series

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  • Alberto Saavedra Espinosa

    (Universidad Nacional Autónoma de México, Facultad de Ciencias)

Abstract

Los objetivos de este trabajo son investigar si: i) un modelo GARCH con innovaciones modeladas mediante una Distribución Pareto Generalizada (DPG), complementado con un pronóstico EWMA de volatilidad para considerar problemas prácticos que pueden surgir en aplicaciones GARCH que comprenden largos periodos de tiempo, estima adecuadamente medidas de riesgo (VaR y Expected Shortfall) para series financierasmexicanas a altos niveles de confianza; ii) las estimaciones de dicho modelo son mejores que aquellas entregadas por un GARCH con innovaciones Gaussianas o t-Student. Nuestras evaluaciones de calidad y comparación entre modelos consisten de backtests de las medidas de riesgo de cada método utilizado en el presente artículo. Nuestros resultados muestran que: i) la metodología utilizada estima apropiadamente nuestras dos medidas de riesgo; ii) el modelo GARCH-DPG entrega mejores resultados que los modelos GARCH-Normal y GARCH-t-Student. Nuestros resultados se limitan a estimaciones de medidas de riesgo a un día. Hasta donde sabemos, nuestros resultados sobre el Expected Shortfall son los primeros de su clase para series mexicanas. Concluimos que el estudio alcanzó sus objetivos y existen importantes áreas de oportunidad para estudios posteriores.

Suggested Citation

  • Alberto Saavedra Espinosa, 2017. "Estimation of Market Risk Measures in Mexican Financial Time Series," Remef - Revista Mexicana de Economía y Finanzas Nueva Época REMEF (The Mexican Journal of Economics and Finance), Instituto Mexicano de Ejecutivos de Finanzas, IMEF, vol. 12(4), pages 365-388, Octubre-D.
  • Handle: RePEc:imx:journl:v:12:y:2017:i:4:p:365-388
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    File URL: http://www.remef.org.mx/index.php/remef/article/view/234/295
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    References listed on IDEAS

    as
    1. Asger Lunde & Peter R. Hansen, 2005. "A forecast comparison of volatility models: does anything beat a GARCH(1,1)?," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 20(7), pages 873-889.
    2. L. Kourouma & Denis Dupré & G. Sanfilippo & O. Taramasco, 2011. "Extreme Value at Risk and Expected Shortfall during Financial Crisis," Post-Print halshs-00658495, HAL.
    3. McNeil, Alexander J. & Frey, Rudiger, 2000. "Estimation of tail-related risk measures for heteroscedastic financial time series: an extreme value approach," Journal of Empirical Finance, Elsevier, vol. 7(3-4), pages 271-300, November.
    4. L. Kourouma & Denis Dupré & O. Taramasco & G. Sanfilippo, 2011. "Extreme Value at Risk and Expected Shortfall during Financial Crisis," Post-Print halshs-00650913, HAL.
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    More about this item

    Keywords

    Risk Analysis; Value at Risk; Volatility Forecasting; GARCH; Extreme Value Theory; Market Risk; Expected Shortfall;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G17 - Financial Economics - - General Financial Markets - - - Financial Forecasting and Simulation
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes

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