Departamento Académico de Economía

URI permanente para esta comunidadhttp://54.81.141.168/handle/123456789/124141

El Departamento de Economía de la Pontificia Universidad Católica del Perú fue creado en agosto de 1969 y desde entonces el equipo de profesores que lo conforman se ha caracterizado tanto por su labor docente como por su dedicación permanente a la investigación de los temas relevantes para la sociedad y la economía peruana.
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20201

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Autorsearch.filters.applied.operator.equals: search.filters.author.Fernández, JeanTemasearch.filters.applied.operator.equals: search.filters.subject.Bayesian Estimation

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    Modeling the Volatility of Returns on Commodities: An Application and Empirical Comparison of GARCH and SV Models
    (Pontificia Universidad Católica del Perú. Departamento de Economía, 2020-02) Fernández, Jean; Rodríguez, Gabriel
    Seven GARCH and stochastic volatility (SV) models are used to model and compare empirically the volatility of returns on four commodities: gold, copper, oil, and natural gas. The results show evidence of fat tails and random jumps created by supply/demand imbalances, international instability episodes, geopolitical tensions, and market speculation, among other factors. We also find evidence of a leverage effect in oil and copper, resulting from their dependence on world economic activity; and of an inverse leverage effect in gold and natural gas, consistent with the formerís role as safe asset and with uncertainty about the latterís future supply. Additionally, in most cases there is no evidence of an impact of volatility on the mean. Finally, we find that the best-performing return volatility models are GARCH-t for gold, SV-t for copper and oil, and SV with leverage effects (SV-L) for natural gas.