Portrait of Dr Dorian Beauchêne

Dr Dorian Beauchêne : Principal

Dorian advises clients on competition economics, litigation/arbitration, data analysis, and regulatory issues. He joined Oxera’s Paris office in 2021 after working for seven years as a Senior Manager at MAPP–KPMG in Paris.

Dorian has worked on projects covering a wide range of industries (retail, telecoms, transport, consumer goods, healthcare, and media and digital) and topics (merger simulation, price optimisation, cost allocation, damages quantification, abuse of dominance, state aid, cartels, and policy evaluation). His reports have been submitted to the French Competition Authority, the Paris court of appeal, the European Commission, the ICC court of arbitration, CSA and ART.

Dorian holds a PhD in Economic Theory from the Paris School of Economics. His PhD dissertation won the Aguirre-Basualdo prize from the Chancellerie des Universités de Paris in 2015.

Dorian speaks English, French, and Spanish.

Tel: +33 (0) 1 87 16 51 31

Dorian's specialisms include:

professional experience

  • Submitted several expert reports for a leading electronics producer during an investigation by the FCA into alleged antitrust violations and during its appeal of the FCA’s decision (2018–21)

  • Assisted Gares & Connexion in setting its regulatory prices (2021)

  • Assisted SNCF Voyageurs in improving its cost allocation rules across different entities (2021)

  • Helped to optimise the design of a new packaged product aimed at small businesses for a retail bank (2020–21)

  • Submitted several expert reports and testified in a phase II hearing for a merger between private hospitals in France (2020)

  • Estimated the potential competitive distortions arising from a subsidy proposal by the state of Belgium on the market for single wagonload freight transport (2019)


  • Beauchêne, D., Li, J. and Li, M. (2019), ‘Ambiguous persuasion’, Journal of Economic Theory, 179, pp. 312–365.

  • Beauchêne, D. (2019), ‘Is ambiguity aversion bad for innovation?’, Journal of Economic Theory, 183, pp. 1154–1176.

  • Beauchêne, D. (2016), ‘Solution concepts for games with ambiguous payoffs’, Theory and Decision, 80:2, pp. 245–269.


  • PhD Economics, Paris School of Economics, France

  • MSc Empirical and Theoretical Economics, Paris School of Economics, France

  • Engineering degree, ENSAE, France

Latest Insights:  Dr Dorian Beauchêne

Navigating Merger Control

Together with Skadden and ThoughtLeaders4, Oxera is delighted to invite you to join us on Tuesday 4 June, along with senior members of the EU and UK judiciary and competition authorities, to discuss the current complexities in navigating merger control. Click here to register for the… Read More

Image depicting Navigating Merger Control

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