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Brexit: Short-term stock price effects and the impact of firm-level internationalization

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  • Oehler, Andreas
  • Horn, Matthias
  • Wendt, Stefan

Abstract

We perform an event study analysis to determine short-term abnormal stock returns following the Brexit referendum. Moreover, we examine whether firm-level internationalization helps explaining abnormal returns. We find that stocks of firms with higher proportions of domestic sales realized more negative abnormal returns than stocks of firms with more sales abroad, i.e., a higher degree of international diversification. While firm-level internationalization largely explains abnormal returns on the trading day after the referendum, it has no relevant pricing effect in the following days. The quick adjustment of stock prices to reflect firm-level internationalization indicates a high degree of market efficiency.

Suggested Citation

  • Oehler, Andreas & Horn, Matthias & Wendt, Stefan, 2017. "Brexit: Short-term stock price effects and the impact of firm-level internationalization," Finance Research Letters, Elsevier, vol. 22(C), pages 175-181.
    • Handle: RePEc:eee:finlet:v:22:y:2017:i:c:p:175-181
    DOI: 10.1016/j.frl.2016.12.024
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    4. Jamal Bouoiyour, Refk Selmi, 2018. "Are UK industries resilient in dealing with uncertainty? The case of Brexit," European Journal of Comparative Economics, Cattaneo University (LIUC), vol. 15(2), pages 277-292, December.
    5. 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.
    6. Razvan Stefanescu & Ramona Dumitriu, 2023. "The Extended January Effect on London Stock Exchange," Risk in Contemporary Economy, "Dunarea de Jos" University of Galati, Faculty of Economics and Business Administration, pages 104-114.
    7. Caterina Moschieri & Daniel J. Blake, 2019. "The organizational implications of Brexit," Journal of Organization Design, Springer;Organizational Design Community, vol. 8(1), pages 1-9, December.
    8. Garcia-Lazaro, Aida & Mistak, Jakub & Gulcin Ozkan, F., 2021. "Supply chain networks, trade and the Brexit deal: a general equilibrium analysis," Journal of Economic Dynamics and Control, Elsevier, vol. 133(C).
    9. Camilo J. Vázquez‐Ordás & Myriam García‐Olalla, 2020. "The Differential Impact of Brexit on Banking: UK vs. Europe," Global Policy, London School of Economics and Political Science, vol. 11(5), pages 569-577, November.
    10. Oehler, Andreas & Schmitz, Jonas Tobias, 2021. "Does intensified communication of hedge funds with letters affect abnormal returns?," International Review of Economics & Finance, Elsevier, vol. 76(C), pages 127-142.
    11. Wael Bousselmi & Patrick Sentis & Marc Willinger, 2018. "Impact of the Brexit vote announcement on long-run market performance," Working Papers hal-01954920, HAL.
    12. Demiralay, Sercan & Gencer, Hatice Gaye & Bayraci, Selcuk, 2022. "Carbon credit futures as an emerging asset: Hedging, diversification and downside risks," Energy Economics, Elsevier, vol. 113(C).
    13. 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.
    14. Burak Çıkıryel & Hakan Aslan & Mücahit Özdemir, 2021. "Impact of Brexit on Islamic stock markets: employing MGARCH-DCC and wavelet correlation analysis," International Journal of Islamic and Middle Eastern Finance and Management, Emerald Group Publishing Limited, vol. 15(1), pages 179-202, August.
    15. 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).
    16. Oehler, Andreas & Horn, Matthias, 2024. "Does ChatGPT provide better advice than robo-advisors?," Finance Research Letters, Elsevier, vol. 60(C).
    17. John Fry & Andrew Brint, 2017. "Bubbles, Blind-Spots and Brexit," Risks, MDPI, vol. 5(3), pages 1-15, July.
    18. Andreas Seebeck & Julia Vetter, 2022. "Not Just a Gender Numbers Game: How Board Gender Diversity Affects Corporate Risk Disclosure," Journal of Business Ethics, Springer, vol. 177(2), pages 395-420, May.
    19. Andrikopoulos, Athanasios & Dassiou, Xeni & Zheng, Min, 2020. "Exchange-rate exposure and Brexit: The case of FTSE, DAX and IBEX," International Review of Financial Analysis, Elsevier, vol. 68(C).
    20. Lee, Junyong & Lee, Kyounghun & Oh, Frederick Dongchuhl, 2023. "International portfolio diversification and the home bias puzzle," Research in International Business and Finance, Elsevier, vol. 64(C).
    21. Yao, Hongxing & Memon, Bilal Ahmed, 2019. "Network topology of FTSE 100 Index companies: From the perspective of Brexit," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 523(C), pages 1248-1262.
    22. Michael Filletti, 2020. "Investigating the influence Brexit had on Financial Markets, in particular the GBP/EUR exchange rate," Papers 2003.05895, arXiv.org.

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    More about this item

    Keywords

    Internationalization; Brexit; International diversification; Stock returns; Stock price effect; Event study;
    All these keywords.

    JEL classification:

    • F65 - International Economics - - Economic Impacts of Globalization - - - Finance
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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