Jackie MCARTHUR
Jackie is a barrister at Essex Court Chambers in London, practising in commercial, public and international law across both litigation and arbitration. She has a particular specialisation in international disputes and advising – encompassing especially investor-state arbitration, public international law, and the conflict of laws. She is described by Legal 500’s public international law rankings for 2022 as “hard working, very clear, very smart and very thorough, as well as being a pleasure to work with.”
Jackie has acted in numerous investor-State arbitrations, under the ICSID Convention, and the ICC, SCC, LCIA and UNCITRAL Rules. Recent examples include a claim concerning a South Asian telecommunications operator, claims concerning energy interests and airlines in Eastern Europe, and a claim concerning competition and taxation laws in Central Europe. She also acts frequently in proceedings before the European Court of Human Rights, and has acted in proceedings before specialised United Nations agencies.
PAW Events
Current edition
Tuesday 24 March 2026
14:30 - 16:30
Investment treaty awards in the English courts – recent developments
Sign up
Previous editions
Friday 31 March 2023
09:30 - 11:00
ISDS: The power of “proportionality” – a sleeping giant of a concept in investment arbitration?
Sign up
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<h1>Jackie MCARTHUR</h1>\n
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Essex Court Chambers\n
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<p>Jackie is a barrister at Essex Court Chambers in London, practising in commercial, public and international law across both litigation and arbitration. She has a particular specialisation in international disputes and advising – encompassing especially investor-state arbitration, public international law, and the conflict of laws. She is described by Legal 500’s public international law rankings for 2022 as “hard working, very clear, very smart and very thorough, as well as being a pleasure to work with.”</p>\n
<p>Jackie has acted in numerous investor-State arbitrations, under the ICSID Convention, and the ICC, SCC, LCIA and UNCITRAL Rules. Recent examples include a claim concerning a South Asian telecommunications operator, claims concerning energy interests and airlines in Eastern Europe, and a claim concerning competition and taxation laws in Central Europe. She also acts frequently in proceedings before the European Court of Human Rights, and has acted in proceedings before specialised United Nations agencies.</p>\n
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<h3>PAW Events</h3>\n
\n
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<h4>Current edition</h4>\n
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> <div class="inside" data-id="41126">\n
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<span class="day">\n
Tue. <b>24</b>\n
Mar.\n
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<span class="year">2026</span>\n
</div>\n
<div class="event-details">\n
<a href="https://parisarbitrationweek.preprod.online/event/essex-court-chambers-2026-41126/" class="event-title">\n
Investment treaty awards in the English courts – recent developments\n
</a>\n
<div class="event-partners">\n
<a href="https://parisarbitrationweek.preprod.online/partner/essex-court-chambers/" class="partner">Essex Court Chambers</a>\n
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<div class="event-themes">\n
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Tuesday <b>24</b> March 2026\n
</div>\n
<div class="hours my-3">\n
14:30 - 16:30\n
</div>\n
</div>\n
<div class="title">Investment treaty awards in the English courts – recent developments</div>\n
<div class="my-3">\n
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1, rue\n
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<a href="https://www.google.com/maps/search/?api=1&query=1,+rue,75009,Paris" target="_blank" class="address-link button is-style-secondary mt-2">\n
<span>How to get there</span>\n
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<a href="https://parisarbitrationweek.preprod.online/event/essex-court-chambers-2026-41126/" class="button is-style-primary mt-5">\n
<span>Sign up\n
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</a>\n
</div>\n
\n
\n
</div> </section>\n
\n
<section class="events period-previous">\n
<h4>Previous editions</h4>\n
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<a href="https://parisarbitrationweek.preprod.online/event/isds-the-power-of-proportionality-a-sleeping-giant-of-a-concept-in-investment-arbitration/" class="event-title">\n
ISDS: The power of “proportionality” – a sleeping giant of a concept in investment arbitration?\n
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HYBRID\n
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<div class="title">ISDS: The power of “proportionality” – a sleeping giant of a concept in investment arbitration?</div>\n
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