Portrait of Lirio Barros

Lirio Barros Senior Consultant

Lirio is a Senior Consultant at Oxera’s Competition practice. He has experience in merger reviews, antitrust investigations and litigation (including collective actions), market investigations and public policy assessments. His experience includes advising a wide range of clients, from regulators to online platforms, in Brussels, the UK, the Netherlands and other jurisdictions.

Prior to joining Oxera, he completed a Master’s degree in Economics at the University of Amsterdam, focusing on industrial organisation and competition policy.

Lirio speaks English, and Dutch.

Tel: +32 (0) 2 895 90 82

Lirio's specialisms include:

Selected
professional experience

  • Prosus/Just Eat Takeaway—assisted merging parties with activities as online meal delivery platforms with merger control review by the European Commission, cleared in Phase 1 with conditions (2025)

  • AMD/ZT Systems—advised merging parties active in semiconductors and server design on merger control reviews in front of the European Commission and other competition authorities worldwide, cleared in Phase 1 unconditionally (2024–25)

  • FincoEnergies/Klaas de Boer—supported merging parties in the bunkering sector in the context of a Phase 2 merger clearance by the Netherlands Authority for Consumers and Markets (2024–25)

  • Oxera consultation response to the European Commission’s Draft Guidelines on exclusionary abuse of dominance (2024)

  • KPN/Youfone—examined the competitive impact of a telecoms merger in the context of a Phase 2 review by the Netherlands Authority for Consumers and Markets (2023–24)

  • Assessed the economic benefits of open- and closed-source AI foundation models for Meta (2023)

Selected
publications

  • Barros, L., Klein, T., Kummel, S., Noviello, I. (2025), ‘Market definition under the EC Market Definition Notice: substitutability versus homogeneous conditions of competition’, 1 April, pp. 1–16.

  • Barros, L., Klein, T., Rosenboom, N., de Valois Turk, M. (2024), ‘Kroniek economie in het mededingingsrecht 2023’, Markt & Mededinging, 1, April, pp. 37–50.

  • Barros, L., Klein, T., Shchepetova, A., Hogg, T., (2022), ‘The rise of dark patterns: does competition law make it any brighter?’, Competition Law Journal, 21: 2, December, pp. 136–144.

  • Jevons, D., Barros, L., Shah, K., (2022), ‘Mass claims: how to value data’, Mass Claims, 22:1, July, pp. 19–25.

  • Barros, L., Blankertz, A., Descamps, A., Mariotto, C., (2022), ‘Privacy: a competition economics perspective’, Competition Law Journal, 21:1, April, pp. 40–50.

  • Barros, L., Klein, T., (2021), ‘De rol van interventiedrempels en effectenanalyse in de Digital Markets Act’, Markt & Mededinging, 4–5, October, pp. 171–177.

Qualifications

  • MSc Economics, University of Amsterdam, the Netherlands

  • BSc Economics and Business, University of Amsterdam, the Netherlands

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