Dr Adrian Majumdar is a Partner at RBB Economics. Prior to taking his post at RBB in April 2004, Adrian was the Deputy Director of Economics (and spent 6 months as acting Chief Economist) at the UK competition authority, the Office of Fair Trading (OFT), now part of the CMA.

Adrian has advised on some of the leading competition law cases in Europe. Working on competition matters since 1995, Adrian has a wealth of experience covering horizontal and non-horizontal mergers, abuse investigations, cartels, vertical agreements, market investigations, regulation, litigation matters and compliance advice. Adrian has also provided expert testimony for numerous clients and has experience of being cross examined and hot tubbing before the UK Competition Appeal Tribunal.

Adrian has published widely on nearly all aspects of competition economics. His publications include the textbook, UK Merger Control, 2016 (with Jonathan Parker), academic papers (Anchoring competition policy: keep consumer welfare and carry on, 2020, Concurrences Liber Amicorum for Richard Whish (with Iestyn Williams); Market Share Contracts with Asymmetric Information, 2009, Journal of Economics and Management Strategy (with Greg Shaffer); Waterbed Effects and Buyer Mergers, 2007, UEA Centre for Competition Policy Working Paper, 05-7; and The Development of Targets for Consumer Savings Arising from Competition Policy, 2004 (with Stephen Davies)), as well as reports commissioned from RBB by the OFT: Cost pass-through: theory, measurement, and potential policy implications, 2014; The Policy Impact of Conjectural Variations, 2011; The Competitive Effects of Buyer Groups, 2008; and Selective Price Cuts and Fidelity Rebates, 2005.

While at the OFT, Adrian was the principal author of the Competition Act Guidelines on Market Definition and the Assessment of Market Power.

Adrian completed his undergraduate studies at Cambridge University and his PhD at the Centre for Competition Policy at the University of East Anglia.