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Estimating volatility persistence under a Brexit-vote structural break

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  • Adesina, Tola

Abstract

We model volatility dynamics and explore volatility persistence under a supposed Brexit-vote structural break. We find that following the Brexit vote, volatility persistence increased significantly in the stock markets but decreased in the foreign exchange market. However we uncover similar patterns in the dynamics of volatility across both markets, with the post Brexit-vote news effect generally contributing less to volatility persistence. Our findings suggest that the increased post Brexit-vote volatility persistence is mainly driven by rising forecast variance from previous periods and that investors may have already priced in the news from the Brexit vote. Therefore, a Brexit-vote structural break may be irrelevant in modelling volatility dynamics.

Suggested Citation

  • Adesina, Tola, 2017. "Estimating volatility persistence under a Brexit-vote structural break," Finance Research Letters, Elsevier, vol. 23(C), pages 65-68.
    • Handle: RePEc:eee:finlet:v:23:y:2017:i:c:p:65-68
    DOI: 10.1016/j.frl.2017.03.004
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    Cited by:

    1. Dao, Thong M. & McGroarty, Frank & Urquhart, Andrew, 2019. "The Brexit vote and currency markets," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 59(C), pages 153-164.
    2. Arshad, Shaista & Rizvi, Syed Aun R. & Haroon, Omair, 2020. "Impact of Brexit vote on the London stock exchange: A sectorial analysis of its volatility and efficiency," Finance Research Letters, Elsevier, vol. 34(C).
    3. Nikola Gradojevic, 2021. "Brexit and foreign exchange market expectations: Could it have been predicted?," Annals of Operations Research, Springer, vol. 297(1), pages 167-189, February.
    4. Guidolin, Massimo & Pedio, Manuela, 2021. "Media Attention vs. Sentiment as Drivers of Conditional Volatility Predictions: An Application to Brexit," Finance Research Letters, Elsevier, vol. 42(C).
    5. Nikolaos A. Kyriazis & Emmanouil M. L. Economou, 2017. "Brexit Decision Effects on European Derivatives Markets: A Sectoral Analysis," Bulletin of Political Economy, Bulletin of Political Economy, vol. 11(1), pages 45-58, June.
    6. Bashir, Usman & Zebende, Gilney Figueira & Yu, Yugang & Hussain, Muntazir & Ali, Ahmed & Abbas, Ghulam, 2019. "Differential market reactions to pre and post Brexit referendum," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 515(C), pages 151-158.
    7. Cikiryel, Burak & Masih, Mansur, 2017. "The Impact of Brexit on Islamic Stock Markets Employing MGARCH-DCC and Wavelet Correlation Analysis," MPRA Paper 95681, University Library of Munich, Germany.
    8. Karanasos, Menelaos & Menla Ali, Faek & Margaronis, Zannis & Nath, Rajat, 2018. "Modelling time varying volatility spillovers and conditional correlations across commodity metal futures," International Review of Financial Analysis, Elsevier, vol. 57(C), pages 246-256.
    9. Julián Andrada-Félix & Adrian Fernandez-Perez & Fernando Fernández-Rodríguez & Simón Sosvilla-Rivero, 2022. "Time connectedness of fear," Empirical Economics, Springer, vol. 62(3), pages 905-931, March.
      • Julián Andrada-Félixa & Adrian Fernandez-Perez & Fernando Fernández-Rodríguez & Simón Sosvilla-Rivero, 2018. "“Time connectedness of fear”," IREA Working Papers 201818, University of Barcelona, Research Institute of Applied Economics, revised Sep 2018.
    10. Abuzayed, Bana & Al-Fayoumi, Nedal & Bouri, Elie, 2022. "Hedging UK stock portfolios with gold and oil: The impact of Brexit," Resources Policy, Elsevier, vol. 75(C).

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    More about this item

    Keywords

    Volatility persistence; Structural break; Brexit;
    All these keywords.

    JEL classification:

    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G01 - Financial Economics - - General - - - Financial Crises

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