Portrait of Dr Nicole Rosenboom

Dr Nicole Rosenboom Partner

Nicole specialises in competition economics and antitrust damages. Her focus is on antitrust, covering cartels and abuse of dominance in a wide variety of sectors. She has advised clients on determining the relevant market, assessing dominance and the (lack of) effects of an agreement or abusive conduct. With regards to private enforcement, she has experience in consumer claims as well as business-to-business claims, with a balance between advising claimants and defendants in multiple jurisdictions.

Recently, she has expanded into the area of sustainability and competition, as well as into ESG litigation, where she applies the same economic toolkit to environmental aspects.

She brings a thorough understanding of the legal situation of any given case, and is experienced in advising clients and their legal representatives in a way that best meets their needs.

Nicole publishes regularly in professional journals in the field of competition law and economics, and often speaks at conferences. She has a PhD in Economics from the University of Amsterdam, which focused on cartels. Before joining Oxera, she worked for eight years as a senior competition researcher for a Dutch consultancy firm.

Nicole speaks English, and Dutch.

Tel: +31 (0)20 888 8385

Nicole's specialisms include:

Selected
professional experience

  • Advice to defendants in a Dutch cartel case in the agriculture sector (2023–)

  • Advice to Booking.com in the German hotel claim against Booking.com in the Netherlands (2021–)

  • Advice to Samsung in the context of a cartel investigation by the Netherlands Authority for Consumers and Markets (ACM), relating to vertical constraints (2020–)

  • Advice to a group of claimants on cartel damages caused by the high-voltage cable cartel (2019–)

  • Advice to a pharmaceutical company on its complaint on abuse of dominance with the ACM (2019–)

  • Advice to VBO in the civil abuse of dominance proceedings against the property website funda (2012–19)

Selected
publications

  • Doorduin, A.J., Klein, T., Rosenboom, N. and de Valois Turk, M. (2025), ‘Kroniek economie in het mededingingsrecht 2024’, Markt&Mededinging.

  • Rosenboom, N., Moore, D., Ford J., Cochrane, E. and Cameron, Z. (2024), ‘Sustainable Divergence between the UK and the EU—the Fair Share Principle in Practice’, European Competition Law Review, 45:9.

  • Rosenboom, N. (2020), ‘Dissecting cartels: from discovery to damages’, PhD thesis, University of Amsterdam.

  • Shamsi, S. and Rosenboom, N. (2023), ‘Economist perspective’, Concurrences N° 1-2023 I On-Topic I Sustainability and competition policy.

  • Rosenboom, N. and in ’t Veld, D. (2019), ‘The Interaction of Public and Private Cartel Enforcement’, World Competition, 42:1, pp. 87–120.

  • Rosenboom, N. (2018), ‘De economische gereedschapskist voor het bepalen van inkoopmacht’, Tijdschrift Mededingingsrecht in de praktijk, October.

Qualifications

  • PhD Economics, University of Amsterdam, the Netherlands

  • MSc Economics, Tilburg University, the Netherlands

  • BSc Economics, University of Utrecht, the Netherlands

Latest Insights:  Dr Nicole Rosenboom

Agenda
1 minute read
Depiction of Sustainable Divergence between the UK and the EU—the Fair Share Principle in Practice

Sustainable Divergence between the UK and the EU—the Fair Share Principle in Practice

As sustainability continues to grow in importance for businesses, regulators are starting to provide guidance on how competition law applies to 'green agreements'. In our recent article, written alongside Linklaters,…
Agenda
2 minute read
Depiction of Green agreements: Oxera’s perspective on the new UK guidelines

Green agreements: Oxera’s perspective on the new UK guidelines

The CMA has launched its Green Agreements Guidance to help businesses co-operate on environmental goals. This new guidance will help businesses understand how they can collaborate on environmental sustainability goals…
Agenda
10 minute read
Depiction of Ticking the boxes on a green self-assessment, and the risk of greenwashing

Ticking the boxes on a green self-assessment, and the risk of greenwashing

In EU competition law, the key criteria for green self-assessments for companies are ‘fair share’ and ‘indispensability’. But how can we assess these from an economics perspective? And how can…
Agenda
17 minute read
Depiction of When to give the green light to green agreements

When to give the green light to green agreements

Should companies be allowed to cooperate—or ‘collude’—on socially beneficial environmental behaviour? Do companies even have the incentive to cooperate on socially beneficial behaviour? In this article, we reconcile apparently divergent…

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