Portrait of Dr Philipp Schliffke

Dr Philipp Schliffke : Partner
He/Him

Philipp co-leads Oxera’s DACH team and heads the DACH Energy team. He has close to 15 years of consulting experience across damages estimation, mergers, state aid, regulation, and abuse of market power, advising clients before competition and regulatory authorities as well as in court and out-of-court proceedings.

Philipp has extensive experience in the application of empirical analysis and is co-author of a chapter in the handbook on vertical restraints in competition law edited by Bauer, Rahlmeyer, and Schöner. He publishes on the topics of competition economics, damages estimation, and energy markets. Lexology lists him as a ‘Thought Leader’ for Germany and, according to Juve, he is among the 20 most recommended economic advisers in Germany.

Clients highlight his ‘excellent economic expertise’, his ‘brilliant understanding of markets’, and his ‘extreme solution orientation’. They also commend him for being ‘great’ in oral hearings. Prior to joining Oxera, Philipp ran his own competition economics consultancy for five years.

Philipp speaks German, and English.

Tel: +49 4022 898907

Philipp's specialisms include:

Selected
professional experience

  • Defence of a US automobile maker before the English High Court in proceedings concerning possible damages arising from diesel emissions (2025–26)

  • Advice to a German transmission system operator in connection with the appropriate return on equity (2026)

  • Defence of Orbia/Vestolit in connection with defending against damages claims arising from the ethylene cartel (2023–)

  • Advice to a German gas transmission system operator in appeal proceedings against the NEST determinations of the Bundesnetzagentur (2025–)

  • Defence of Boehringer Ingelheim in abuse proceedings before the Romanian competition authority, including appeal proceedings (2024–)

  • Advice to German gas network operators in connection with the risk profile and appropriate return on equity of the hydrogen core network (2025)

Selected
publications

  • Schliffke, P. and Fock, A. (2025), ‘Reform of the German electricity grid tariff system: should producers pay grid charges?’, Agenda, July 2025.

  • Schliffke, P. (2024), ‘Cartel Damages Without Economic Experts? The Implications of the German Federal Supreme Court Decisions Trucks III & IV’, Kluwer Competition Law Blog, 1 November 2024.

  • Schliffke, P. (2024), ‘Zur (Un-)Möglichkeit einer ökonomischen Verteidigung gegen das „Ob“ eines Kartellschadens nach Lkw III’, Wirtschaft und Wettbewerb, 2024:5, pp. 255–62.

  • Hancher, L., Robins, N. and Schliffke, P. (2024), ‘The Cumulation of State Aid Granted by Different Member States—The Landwärme Case’, Guest State Aid Blog by Lexxion Publisher.

  • Schliffke, P. (2024), ‘Vertikale Beschränkungen aus Ökonomischer Sicht’, in M. Bauer, D. Rahlmeyer and M. Schöner (eds), Handbuch Vertriebskartellrecht, second edition, C.H. Beck.

  • Hellmann, H.J. and Schliffke, P. (2022), ‘Grenzen der Schätzbefugnis nach § 287 ZPO im Angesicht ökonomischer Erfahrungssätze’, Wirtschaft und Wettbewerb, 2022:2, pp. 83–89.

Qualifications

  • Dr. rer. pol. in Economics, University of Hamburg, Germany

  • Diploma in Economics, University of Hamburg, Germany

Latest Insights:  Dr Philipp Schliffke

9 minute read
Die Bundesnetzagentur (BNetzA) hat im Mai 2025 ein Diskussionspapier über die Zukunft der Stromnetzentgelte in Deutschland veröffentlicht.1 Das Papier stellt kritische Fragen zur zukünftigen Netzentgeltsystematik in Deutschland und die Konsultation…

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