Liza Herrmann

Liza Herrmann

Doctoral Student

Intellectual Property and Competition Law

+49 89 24246-437

Areas of Interest:

Antitrust and competition law, regulation of the digital economy, IT law in particular cybersecurity and the regulation of digital robots (bots)

Academic Résumé

Since 2021
Doctoral Student at the Max Planck Institute for Innovation and Competition
(Doctoral supervisor: Prof. Josef Drexl, LL.M. (UC Berkeley))

2017 – 2018
Certificate in Transnational Law (CTL) at the Université de Genève (Switzerland)

2015 – 2020
Study of Law at the Humboldt University of Berlin,
English-language specialisation at the Université de Genève (Switzerland): Foreign Law

Work Experience

September – November 2021
Research assistant at an international law firm in the field of Antitrust and Competition Law

February – August 2021
Research assistant at an international law firm in the field of Dispute Resolution & Litigation

October – December 2020
Research assistant at a German commercial law firm in the area of Mergers & Acquisitions/Private Equity


Contributions to Collected Editions, Commentaries, Handbooks and Encyclopaedias

Wettbewerbsrechtliche Herausforderungen durch international heterogene Gatekeeper-Regulierung – Plädoyer für ein strategisches Umdenken, in: Johannes Buchheim et al. (ed.), Plattformen - Grundlagen und Neuordnung des Rechts digitaler Plattformen (Assistententagung Grüner Bereich, 7), Nomos, Baden-Baden 2024, 143 - 162 (together with Lukas Kestler).

  • Event: 8. Tagung GRUR Junge Wissenschaft - Kolloquium zum Gewerblichen Rechtsschutz, Urheber- und Medienrecht, Universität Potsdam, 2023-06-23

Journal Articles

Gatekeeper's Potential Privilege – the Need to Limit DMA Centralisation, Journal of Antitrust Enforcement 2023 (together with Jörg Hoffmann, Lukas Kestler).

  • The Digital Markets Act (DMA) aims at promoting contestable and fair markets for core platform services by setting out obligations for designated gatekeepers. As the DMA does not clearly define these two objectives, it comes into conflict with national legislation with overlapping objectives. This may include unfair competition laws and sector-specific regulation. Art. 1(5) DMA addresses this conflict by stipulating that Member States may not impose further obligations on gatekeepers for the purpose of ensuring contestable and fair markets. The effect this has is that national provisions vis-à-vis gatekeepers may not be applicable anymore and competences are centralised on the European level more broadly than potentially envisaged by the European legislature. This centralisation of competences runs the risk of inadvertently privileging gatekeepers by blocking national laws that are, however, still applicable to SMEs and other firms competing with gatekeepers. This paper suggests solutions to mitigate such risk.
  • Also published as: Max Planck Institute for Innovation & Competition Research Paper No. 23-01

Position Statement of the Max Planck Institute for Innovation and Competition of 2 May 2023 on the Implementation of the Digital Markets Act (DMA), GRUR Int 72, 9 (2023), 864 - 875 (together with Josef Drexl et al.).

Scalper Bots – Ein Beispiel für die Divergenz von gewollter Automatisierung & rechtlichen Grenzen, Computer und Recht 38, 6 (2022), 356 - 364.


    Position Statement of the Max Planck Institute for Innovation and Competition of 2 May 2023 on the Implementation of the Digital Markets Act (DMA), 2023, 33 pp. (together with Josef Drexl et al.).

    • Regulation (EU) 2022/1925 of the European Parliament and of the Council of 14 September 2022 on contestable and fair markets in the digital sector (Digital Markets Act; DMA) entered into force on 1 November 2022 and applies from 2 May 2023. The DMA is a novel type of regulation laying down harmonised rules for core platform services provided or offered by gatekeepers to business users and end users established or located in the Union. It pursues the objective of achieving fairness and contestability in the digital sector across the Union where gatekeepers are present.
      In its position statement of 2 May 2023, the Institute acknowledges that uniform rules throughout the European Union and centralised enforcement are necessary to prevent internal market fragmentation and welcomes the first Commission Implementing Regulation for the DMA of 14 April 2023. However, it remains concerned by the DMA’s unique institutional design and its interaction with other laws as outlined under Articles 1(5), 1(6) and 1(7).
      In particular, the Institute raises awareness about the possible overly broad blocking effects of the DMA on national rules, which may have the unintended consequences of privileging gatekeepers by jeopardizing future national legislative initiatives. This ultimately obstructs the achievement of contestability and fairness in digital markets. A complementary application of the competition rules and effective enforcement of the DMA is, against this backdrop, crucial. Yet there is uncertainty over administrative enforcement mechanisms, and it is unclear what role private enforcement plays in the current legal design of the DMA. The position statement identifies and examines challenges in the implementation of the DMA, along with recommendations for overcoming them.
    • Position_Statement_MPI_DMA.pdf
    • Also published as: Max Planck Institute for Innovation & Competition Research Paper No. 23-11
    • Also published in: GRUR International, Volume 72, Issue 9, September 2023, Pages 864–875



    Gatekeeper's Potential Privilege - The need to Limit DMA Centralisation
    Presentation at the 18th ASCOLA Conference 2023 together with Jörg Hoffmann and Lukas Kestler
    Venue: National and Kapodistrian University of Athens (Greece)

    Challenges of international heterogeneous gatekeeper regulation
    Presentation at the 8th Conference GRUR Junge Wissenschaft, Colloquium on Intellectual Property, Copyright and Media Law together with Lukas Kestler
    Topic of the conference: Platforms - Foundations and Reorganisation of the Law of Digital Platforms
    Venue: University of Potsdam (Germany)

    Cyber Bots as a Competitive Threat - A Competition Policy Risk Assessment and Regulatory Approaches
    Presentation at the EIPIN Doctoral Seminar
    Location: Max Planck Institute for Innovation and Competition, Munich (Germany)

    Introduction to European Competition Law
    Holding of a guest lecture as part of the Bachelor course "Economic Law"
    Location: University of Antwerp (Belgium)


    Voluntary and Honorary Activities

    • Member of the Works Council, Max Planck Institute for Innovation and Competition (since 2022)
    • Member of the Institute Committee, Max Planck Institute for Innovation and Competition (since 2022)
    • Board Member of the Geneva-Society e.V. - Association For Legal Studies