Derek Ridyard

Competition Appeal Tribunal (London)
Ordinary Member

Derek Ridyard is an ordinary member of the London Competition Appeal Tribunal. He has 20 years experience as a consultant on the economics of competition law, prior to which he worked as an economist in the Office of Fair Trading in London. Before, he has worked on assignments for clients involved in some of the leading competition law cases in Europe, and has acted in competition law proceedings across a wide range of industries as diverse as banking, cement, grocery retailing, shipping and computer software. Derek has represented clients including Scandinavian Airlines, Ticketmaster, Unilever and Coca-Cola at competition law hearings. He has also appeared as an expert witness in court cases in London, Dublin and Oslo, and at a variety of arbitration proceedings. Derek has published numerous articles on subjects including the economics of merger control, vertical restraints, dominant firm pricing and intellectual property, and is a regular speaker at competition law conferences. He is a member of the editorial board of the European Competition Law Review, and of the Scientific Committee of the Global Competition law centre.


Linked authors

University of Leeds
University of Cambridge
Competition Appeal Tribunal (London)
Competition Appeal Tribunal (London)
Competition Appeal Tribunal (London)


9775 Bulletin

Derek Ridyard, George Siolis The Australian Competition Authority grants for the first time a conditional authorisation to engage in resale price maintenance (Tooltechnic Systems)


Refining its Tool Kit – The ACCC’s decision to authorise RPM in the Tooltechnic case* In December 2014 Australia’s Competition and Consumer Commission (“the ACCC”) granted conditional authorisation to Tooltechnic Systems (Australia) Pty Ltd (“Tooltechnic”) to engage in minimum resale price (...)

Derek Ridyard Resale Price Maintenance: An overview of EU and national case law


This article provides an overview of the current economic and policy thinking on minimum resale price maintenance (RPM), the practice whereby upstream suppliers enter into agreements with their downstream retailers or re-sellers which specify a minimum price at which they can sell their (...)

2124 Review



Total visits

Number of readings per contribution

Number of contributions

Author's ranking
In number of contributions
In number of visits
In average number of visits
Send a message