Ronnie Barnes

Ronnie Barnes
4 More London Riverside, 5th Floor
+44 20 3655 0903
+44 20 3655 0999


Who's Who Legal Arbitration: Expert Witnesses

Dr Ronnie Barnes, a principal at Cornerstone Research, has played a key role in establishing and developing the firm’s European international arbitration practice. An expert on accounting, damages and valuation, Dr Barnes specialises in complex valuation methodologies, including the estimation of the cost of capital, the determination of country risk premia, and the valuation of complex financial instruments such as derivatives and structured finance products.

He has provided written and oral testimony in multiple matters involving topics that range include the tax treatment of hire purchase contracts; the assessment of damages resulting from the breach of a joint venture agreement; the economic equivalence of various financial derivatives; and the use of derivatives in alleged share price manipulation.

In addition to serving as a testifying expert, Dr Barnes leads teams that support Cornerstone Research’s external academic and practitioner experts. In this capacity, he has worked on numerous matters related to financial institutions and financial products, cases requiring the analysis of damages stemming from alleged misrepresentations and omissions in corporate disclosures, and other matters requiring sophisticated accounting, financial, and/or economic, analysis.

Dr Barnes is an author of “The Use of Econometric and Statistical Analysis and Tools”, a chapter in The Guide to Damages in International Arbitration, and has also published articles on valuation methods and damages analyses. He is a UK-qualified chartered accountant, and previously held positions in accounting and investment banking firms, as well as a consulting firm and in academia. 

Dr Barnes holds a PhD and an MSc from the London Business School; a Master of Advanced Study degree in mathematics from the University of Cambridge; and a BA (with honours) in mathematics from the University of Oxford.

WWL says: Ronnie Barnes is identified by peers in the UK as "a super-smart expert in the market". He is experienced in investigations, most notably those involving prominent financial institutions.

This biography is an extract from Who's Who Legal: Arbitration which can be purchased from our Shop.

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87 Lancaster Road, London
W11 1QQ, UK