Portrait of Dr Avantika Chowdhury

Dr Avantika Chowdhury : Partner

Avantika provides expert economic advice on competition matters and commercial disputes, including antitrust and damages litigation. She has advised clients in relation to mergers, horizontal and vertical agreements, and abuse of dominance, including in the context of private litigation and investigations by the European Commission and other competition authorities.

Avantika has acted as an expert in antitrust and damages litigation and in wider commercial disputes before the High Court in England, the UK Competition Appeal Tribunal, and courts in Ireland and the Netherlands. She has broad sectoral experience, with specific expertise in the life sciences and technology sectors and in digital and intellectual property issues. She is listed in The International Who’s Who of Competition Lawyers & Economists and is an active contributor to policy discussions through regular publications and speaking engagements.

Avantika speaks English.

Tel: +44 (0) 20 7776 6619

Avantika's specialisms include:

professional experience

  • Advising a large digital platform on ongoing competition and regulatory investigations and policy debates (2020–)

  • Advising an SEP owner in the context of an arbitration regarding potential abuse of dominance (2020–)

  • Advising a food delivery platform in the context of an investigation into its pricing structure to suppliers (2020–)

  • Advised a complainant to the European Commission in relation to abuse of dominance and foreclosure by a key supplier (2019–20)

  • Advised a generic pharmaceutical company being investigated by the UK competition authority (2019–20)

  • Advised Lonza during the European Commission investigation of GE/Danaher acquisition (2019) dispute relating to new regulations in Ireland (2019)

expert experience

  • Expert for a provider of financial services in its damages claim following a decision by the Lithuanian competition authority (2020–)

  • Expert for a pharmaceutical company in the context of an injunction application by the originator in Ireland (2020–)

  • Expert in an abuse of dominance litigation involving standard essential patents (SEPs) and FRAND analysis (2019–)

  • Expert for a concrete pipes supplier in its appeal against the infringement decision issued by the UK Competition and Markets Authority (2019–20)

  • Expert in a dispute regarding the selection criteria in a selective distribution system, before the High Court in the UK (2019–20)

  • Expert for Boots in a dispute relating to new regulations in Ireland (2019)


  • Chowdhury, A. (2020), ‘Most Favoured Nation clauses: in need of an effects-based approach’, Concurrences book volume on the revision of the Vertical Block Exemption Regulation, forthcoming.

  • Chowdhury, A. and Gupta, S. (2019), ‘Valuation of FRAND: recent developments and looking forward’, ICLG Patents 2020.

  • Chowdhury, A. and Jenkins, H. (2018), ‘Inference or Evidence? The Uncertain Fate of Patent Settlement Agreements’, Journal of European Competition Law & Practice, 9:7, pp. 449–453.


  • PhD Economics, Pennsylvania State University

  • MSc Quantitative Economics, Indian Statistical Institute

  • BSc (Hons) Economics, Calcutta University

Latest Insights:  Dr Avantika Chowdhury

On 2 June 2020, the European Commission launched a consultation on proposals for a new competition tool (NCT) and the Digital Services Act (DSA) package. If enacted, they would represent…
The recent rise of ecommerce has triggered debate around vertical agreements between suppliers and distributors/retailers. Against this backdrop, is the European Commission’s current Vertical Block Exemption Regulation (VBER) still fit…
When does price discrimination by a dominant firm amount to an abuse? Is the mere existence of a price difference sufficient? A recent ruling by the Court of Justice of…
On 8 March 2018, the CAT handed down its ‘initial’ judgment on an appeal of a decision by the Competition and Markets Authority (CMA) on the patent settlement agreements in…

The Economics of Climate Change at COP26

Oxera will be presenting on The Economics of Climate Change at COP26—the 2021 United Nations Climate Change Conference—in Glasgow, on one of the world leaders’ days on 2 November 2021. The aim of COP26 is to increase global alignment on climate action. We will be demonstrating to the world’s governments,… Read More

Image depicting The Economics of Climate Change at COP26