WWL: Arbitration Expert Witnesses 2023


José Alberro and Ronnie Barnes of Cornerstone Research and René Stulz of The Ohio State University again named to expert witness list.

London—Who’s Who Legal (WWL) and Global Arbitration Review have once again recognised José Alberro, Ronnie Barnes and René Stulz as Global Leaders among arbitration expert witnesses in 2023. Dr Alberro and Dr Barnes co-head the international arbitration and litigation practice at Cornerstone Research.

WWL notes that Dr Alberro, Dr Barnes and Professor Stulz ‘have distinguished themselves giving expert testimony on behalf of domestic and international clients operating across a diverse range of industries and sectors.’

  • José Alberro specialises in damages estimation in the context of international arbitration. He has provided expert testimony on four continents, involving both investor-state and commercial disputes, and in proceedings under ICSID, UNCITRAL, ECT and ICC rules.
  • Ronnie Barnes is an expert on accounting, damages and valuation. He has provided written and oral testimony in a number of litigation and arbitration matters in the United Kingdom, United States, Canada, South Africa and internationally.
  • René M. Stulz is the Everett D. Reese Chair of Banking and Monetary Economics and director of the Dice Center for Research in Financial Economics at Fisher College of Business, The Ohio State University. Professor Stulz is a leading finance expert, whose work focuses on corporate finance, risk management, derivatives, securities, financial institutions and valuation.

WWL and Global Arbitration Review draw on recommendations from peers, clients, arbitrators, tribunal members, chairs and counsel to identify the foremost expert witnesses in the arbitration field.

  • Washington

José Alberro

Senior Advisor

  • London

Ronnie Barnes

Vice President

René M. Stulz

Everett D. Reese Chair of Banking and Monetary Economics,
Director, Dice Center for Research in Financial Economics,
Fisher College of Business,
The Ohio State University


Carine Campbell
Cornerstone Research
+44 020 3655 0907
Liz Sobe
Cornerstone Research