Modeling and Forecasting Realized Covariance Matrices with Accounting for Leverage

Stanislav Anatolyev and Nikita Kobotaev
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Nikita Kobotaev: New Economic School

No w0213, Working Papers from New Economic School (NES)

Abstract: The existing dynamic models for realized covariance matrices do not account for an asymmetry with respect to price directions. We modify the recently proposed conditional autoregressive Wishart (CAW) model to allow for the leverage effect. In the conditional threshold autoregressive Wishart (CTAW) model and its variations the parameters governing each asset's volatility and covolatility dynamics are subject to switches that depend on signs of previous asset returns or previous market returns. We evaluate the predictive ability of the CTAW model and its restricted and extended specifications from both statistical and economic points of view. We find strong evidence that many CTAW specifications have a better in-sample fit and tend to have a better out-of-sample predictive ability than the original CAW model and its modfications.

Pages: 51 pages
Date: 2015-02
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https://www.nes.ru/files/Preprints-resh/WP213.pdf (application/pdf)

Related works:
Journal Article: Modeling and forecasting realized covariance matrices with accounting for leverage (2018)
Working Paper: Modeling and Forecasting Realized Covariance Matrices with Accounting for Leverage (2015)
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Persistent link: https://EconPapers.repec.org/RePEc:abo:neswpt:w0213

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