Insights into the Vienna Competition Law Days 2023

In the current issue of the Austrian Competition Journal (Österreichische Zeitschrift für Kartellrecht), Fabian Ziermann takes a look back at the Vienna Competition Law Days 2023, which The Hub hosted at the Vienna University of Economics and Business on 11 and 12 September 2023. He gives an overview of the workshop’s four panels and the ensuing discussions, as well as of Klaudia Majcher’s book launch. The article, in German, is available here.

Women in Antitrust

Algorithmic Pricing and Competition Law

In the age of big data, sellers can amass a considerable amount of up-to-date information about their customers that algorithms can then use in order to engage in personalised pricing practices at a large scale. Vicky Robertson’s contribution, just published in the international collaborative book entitled Women in Antitrust: Antitrust Across the Borders, assesses algorithmic pricing from a competition law perspective, addressing several questions: The prospect of an increased personalisation of prices may lead to a gradual disappearance of uniform market prices, which have been at the centre of economics-based competition law for many years. This could call into question many of the general tools of competition analysis. Furthermore, the question poses itself to what extent algorithmic personalised pricing could constitute an anti-competitive practice that can and should be challenged under current competition laws. While some theories of harm, like discrimination and excessive prices, are possible candidates when analysing the applicability of well-known abuses to algorithmic personalised pricing, consumer trust in digitalisation and markets may warrant the elaboration of a theory of harm specifically tailored to algorithmic personalised pricing. In addition, the question poses itself whether the particular harm that algorithmic personalised pricing can inflict should be considered in more tailored regulation. While this contribution’s focus is on EU competition law, similar principles can guide the discussion in other jurisdictions. The contribution can be read in open access here.


Computational Antitrust Tools to Detect RPM

Computational antitrust tools can help competition authorities in the detection of antitrust infringements. However, these tools require the availability of suitable data sets in order to produce reliable results. In their proof-of-concept study carried out within the realm of the DataComp project, Jan Amthauer, Jürgen Fleiß, Franziska Guggi and Vicky Robertson focus on the area of resale price maintenance. By applying web scraping to price data for washing machines in Austria from a publicly accessible price comparison website, they compiled a comprehensive data set for a period of nearly three months. Visualised with the help of interactive dashboards, this data could then be analysed using various benchmarks in order to determine whether individual washing machine manufacturers and their retailers may be engaging in resale price maintenance. They conclude that the availability of data is a strong driver for research into and the application of computational antitrust tools. If market data were publicly accessible and provided in a more structured format, researchers and competition enforcers could develop ever-more refined computational antitrust applications that would, ultimately, safeguard competition in markets. The paper was just published in the Computer Law & Security Review and is available in open access here.

Petar Petrov Beihilfen

State Aid and Covid 19

Petar Petrov's article on state aid and COVID-19 in the air transport sector (in German) was published in the Zeitschrift für Beihilferecht (BRZ). The article focuses on the impact of COVID-19 on air carriers and on the latest developments in the field of state aid in this sector. It can be accessed here.

Klaudia Majcher Publ

Coherence between Data Protection and Competition Law

In digital markets, data protection and competition law affect each other in diverse and intricate ways. Their entanglement has triggered a global debate on how these two areas of law should interact to effectively address new harms and ensure that the digital economy flourishes. In her new book ‘Coherence between Data Protection and Competition Law in Digital Markets’ (OUP 2023), Klaudia Majcher offers a blueprint for bridging the disconnect between data protection and competition law in digital markets. The ideas that Klaudia puts forward for a more synergetic integration of data protection and competition law are anchored in the concept of 'sectional coherence'. This new coherence-centred paradigm reimagines the interpretation and enforcement of data protection and competition law as mutually cognizant and reciprocal, allowing readers to explore, in an innovative way, the interface between these legal fields and identify positive interactions, instead of merely addressing inconsistencies and tensions. The book can be obtained here.

ECLR 2023

The Future of Digital Mergers Post-DMA

The Digital Markets Act (DMA) wants to ensure contestable and fair digital markets. In addition to its principal obligations, the DMA requires digital gatekeepers to inform the European Commission of any prospective merger (Article 14 DMA). Together with the Dutch clause contained in the EU Merger Regulation (Article 22 EUMR), this obligation will impact the future of digital merger control as the Commission will forward gatekeepers’ merger information to national competition authorities, which can then make use of the referral mechanism under the Dutch clause to enable the Commission to investigate the digital merger.

Vicky Robertson’s article on the issue was just published in the European Competition Law Review, and is freely available here with kind permission of the publisher:


Abuse of Dominance in the Funeral Industry

Franziska Guggi’s work on abuse of dominance in the funeral industry, which she previously presented at the ASCOLA conference in Porto in 2022, was just published. It analyses abuse of dominance in the funeral industry against the background of the essential facilities doctrine. In 2022, Franziska was awarded the Linda-Rauter-Prize by the Faculty of Law of the University of Graz for this work, which is based on her Master thesis. The prize goes to the most outstanding theses in the areas of comparative law, European law, and international law. The contribution is available here:


Advisory Board of WuW

Vicky Robertson has been asked to join the Advisory Board of German competition law journal WuW – Wirtschaft und Wettbewerb, an honour she was glad to accept. The WuW is edited by Justus Haucap, Wolfgang Kirchhoff, Andreas Mundt, Petra Pohlmann, Rupprecht Podszun, Daniela Seeliger and Florian Wagner-von Papp. For more information, visit


How to Analyse the Microsoft/Activision Merger

Fabian Ziermann’s article on Microsoft’s pending acquisition of Activision Blizzard was just published in the Journal of European Competition Law & Practice as part of the third Rubén Perea Award. In his article, Fabian addresses questions regarding the delineation of video game genre markets and potential harms to innovation in game genres, game ecosystems, and metaverse development. These issues may have been overlooked by the Competition & Markets Authority and the European Commission in their respective decisions to prohibit and approve the acquisition. Fabian argues that this neglect could result in a false positive, three times the acquisition value of Facebook/WhatsApp. The article can be accessed here.

Abuse of Dominance

Anti-Competitive Rebates

In the Research Handbook on Abuse of Dominance and Monopolization, published by Edward Elgar in April 2023, Vicky Robertson contributed a chapter on rebates, detailing the antitrust rules applicable to loyalty or fidelity rebate schemes under EU competition and US antitrust law. The chapter finds that antitrust liability for a dominant company will more readily be established in the EU, where the applicability of economics-based tests is still being navigated. In the US, rebates by a monopoly player will usually be found to be anti-competitive where they constitute predatory pricing, although they might also run into antitrust liability where they constitute exclusive dealing arrangements. This divergence can be explained by the different ideological underpinnings in the two jurisdictions. Overall, however, the (case) law on loyalty rebates is still in a state of flux in both jurisdictions. In recent years, both jurisdictions have gradually moved to a little more convergence in their treatment of exclusivity rebates. At this point, however, both the US Supreme Court and the European Court of Justice will need to weigh in on the future of the antitrust assessment of loyalty-inducing rebates.

The Handbook is edited by Pınar Akman, Or Brook (both University of Leeds) and Konstantinos Stylianou (University of Glasgow). It can be found here.