Title | Backtesting VaR under the COVID-19 sudden changes in volatility |
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Type | Journal article |
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Authors | Castillo, Brenda, León, Ángel and Ñíguez, Trino-Manuel |
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Abstract | We analyze the impact of the COVID-19 pandemic on the conditional variance of stock returns. We look at this effect from a global perspective, so we employ series of major stock market and sector indices. We use the Hansen's Skewed-t distribution with EGARCH extended to control for sudden changes in volatility. We oversee the COVID-19 effect on measures of downside risk such as the Value-at-Risk. Our results show that there is a significant sudden shift up in the return distribution variance post the announcement of the pandemic, which must be explained properly to obtain reliable measures for financial risk management. [Abstract copyright: Crown Copyright © 2021 Published by Elsevier Inc. All rights reserved.] |
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Keywords | EGARCH |
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| Backtesting |
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| Skewed-t |
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| Monte Carlo |
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| Value-at-Risk |
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Article number | 102024 |
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Journal | Finance Research Letters |
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Journal citation | 43, p. 102024 |
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ISSN | 1544-6131 |
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Year | 2021 |
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Publisher | Elsevier |
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Accepted author manuscript | License CC BY-NC-ND 4.0 File Access Level Open (open metadata and files) |
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Digital Object Identifier (DOI) | https://doi.org/10.1016/j.frl.2021.102024 |
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PubMed ID | 35221805 |
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Web address (URL) | https://www.sciencedirect.com/journal/finance-research-letters |
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Publication dates |
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Published online | 18 Mar 2021 |
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Published in print | Nov 2021 |
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