On the robustness of the principal volatility components

Carlos Trucíos (), Luiz Hotta and Pedro Valls Pereira

Journal of Empirical Finance, 2019, vol. 52, issue C, 201-219

Abstract: In this paper, we analyse the recent principal volatility components analysis procedure. The procedure overcomes several difficulties in modelling and forecasting the conditional covariance matrix in large dimensions arising from the curse of dimensionality. We show that outliers have a devastating effect on the construction of the principal volatility components and on the forecast of the conditional covariance matrix and consequently in economic and financial applications based on this forecast. We propose a robust procedure and analyse its finite sample properties by means of Monte Carlo experiments and also illustrate it using empirical data. The robust procedure outperforms the classical method in simulated and empirical data.

Keywords: Conditional covariance matrix; Constant volatility; Curse of dimensionality; Jumps; Outliers; Principal components (search for similar items in EconPapers)
JEL-codes: C13 C51 C53 C55 G17 (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (10)

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Working Paper: On the robustness of the principal volatility components (2018)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:empfin:v:52:y:2019:i:c:p:201-219

DOI: 10.1016/j.jempfin.2019.03.006

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