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Iona McCall

Professional economist
Iona McCall has 24 years of experience as a professional economist and co-heads the AlixPartners Competition Practice in EMEA. A specialist competition expert, Iona has led major projects on competition issues and cases for the UK Competition and Markets Authority, its predecessor the Office of Fair Trading, the European Commission, the European Parliament, the Dutch Authority for Consumers and Markets and the French Competition Authority, as well as for lawyers and numerous private sector clients. She frequently acts as an expert in competition litigation proceedings in relation to abuse of dominance, anti-competitive agreements (horizontal and vertical), follow-on damages and collective proceedings. Email: imccall@alixpartners.com

Articles by author

Competition concerns in liability management exercise disputes

This Spotlight article considers the competition issues emerging in the context of liability management exercises and similar restructurings, in which a distressed company’s debt is reorganised to the disadvantage of creditors left outside the deal. Drawing on two recent disputes – Selecta and Thames Water – it explains how a challenge by excluded creditors would fall under Chapter 1 of the Competition Act 1998 and works through two elements such a claim would involve: the theory of harm advanced and the market definition needed to support it. It sets out the considerations that would have an impact on defining a market in this setting, whilst recognising that neither of the discussed disputes has yet required a court to do so.

26 SEP 2026