Brexit and Uncertainty in Financial Markets

This paper applies long-memory techniques (both parametric and semi-parametric) to examine whether Brexit has led to any significant changes in the degree of persistence of the FTSE (Financial Times Stock Index) 100 Implied Volatility Index (IVI) and of the British pound’s implied volatilities (IVs)...

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Main Authors: Guglielmo Maria Caporale, Luis Gil-Alana, Tommaso Trani
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:International Journal of Financial Studies
Subjects:
Online Access:http://www.mdpi.com/2227-7072/6/1/21
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author Guglielmo Maria Caporale
Luis Gil-Alana
Tommaso Trani
author_facet Guglielmo Maria Caporale
Luis Gil-Alana
Tommaso Trani
author_sort Guglielmo Maria Caporale
collection DOAJ
description This paper applies long-memory techniques (both parametric and semi-parametric) to examine whether Brexit has led to any significant changes in the degree of persistence of the FTSE (Financial Times Stock Index) 100 Implied Volatility Index (IVI) and of the British pound’s implied volatilities (IVs) vis-à-vis the main currencies traded in the FOREX (foreign exchange market), namely the euro, the US dollar and the Japanese yen. We split the sample to compare the stochastic properties of the series under investigation before and after the Brexit referendum, and find an increase in the degree of persistence in all cases except for the British pound-yen IV, whose persistence has declined after Brexit. These findings highlight the importance of completing swiftly the negotiations with the European Union (EU) to achieve an appropriate Brexit deal.
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spelling doaj.art-957d74072beb495580f26f096ba6fe462022-12-21T17:33:17ZengMDPI AGInternational Journal of Financial Studies2227-70722018-02-01612110.3390/ijfs6010021ijfs6010021Brexit and Uncertainty in Financial MarketsGuglielmo Maria Caporale0Luis Gil-Alana1Tommaso Trani2Department of Economics and Finance, Brunel University, London UB8 3PH, UKDepartment of Economics, University of Navarra, UB8 3PH Pamplona, SpainDepartment of Economics, University of Navarra, UB8 3PH Pamplona, SpainThis paper applies long-memory techniques (both parametric and semi-parametric) to examine whether Brexit has led to any significant changes in the degree of persistence of the FTSE (Financial Times Stock Index) 100 Implied Volatility Index (IVI) and of the British pound’s implied volatilities (IVs) vis-à-vis the main currencies traded in the FOREX (foreign exchange market), namely the euro, the US dollar and the Japanese yen. We split the sample to compare the stochastic properties of the series under investigation before and after the Brexit referendum, and find an increase in the degree of persistence in all cases except for the British pound-yen IV, whose persistence has declined after Brexit. These findings highlight the importance of completing swiftly the negotiations with the European Union (EU) to achieve an appropriate Brexit deal.http://www.mdpi.com/2227-7072/6/1/21BrexituncertaintyIVI indexBritish pound’s implied volatilitiesfinancial markets
spellingShingle Guglielmo Maria Caporale
Luis Gil-Alana
Tommaso Trani
Brexit and Uncertainty in Financial Markets
International Journal of Financial Studies
Brexit
uncertainty
IVI index
British pound’s implied volatilities
financial markets
title Brexit and Uncertainty in Financial Markets
title_full Brexit and Uncertainty in Financial Markets
title_fullStr Brexit and Uncertainty in Financial Markets
title_full_unstemmed Brexit and Uncertainty in Financial Markets
title_short Brexit and Uncertainty in Financial Markets
title_sort brexit and uncertainty in financial markets
topic Brexit
uncertainty
IVI index
British pound’s implied volatilities
financial markets
url http://www.mdpi.com/2227-7072/6/1/21
work_keys_str_mv AT guglielmomariacaporale brexitanduncertaintyinfinancialmarkets
AT luisgilalana brexitanduncertaintyinfinancialmarkets
AT tommasotrani brexitanduncertaintyinfinancialmarkets