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Autor:innen: 
Erscheinungsjahr: 
2024
Schriftenreihe/Nr.: 
Ilmenau Economics Discussion Papers No. 192
Verlag: 
Technische Universität Ilmenau, Institut für Volkswirtschaftslehre, Ilmenau
Zusammenfassung: 
The European Digital Markets Act (DMA) is a regulatory framework designed to address competition concerns in digital markets by imposing specific prohibitions and obligations on the core platform services of so-called gatekeepers. As the DMA is the first regulation of its kind worldwide, regulative uncertainties in its application need to be identified and addressed for its future review by policymakers. This is particularly true for the DMA measures on data interoperability and portability. This paper examines key economic concepts and, thus, the reasoning behind the DMA's interoperability and portability rules, assessing their theoretical impact on competition in digital markets. It shows that (i) the horizontal interoperability measures for number-independent interpersonal communication services are not necessarily economically justified and their current design might even lead to less competition; (ii) the effects of vertical interoperability instruments seem to be more procompetitive for hardware, namely near field communication, while the outcome for software remains difficult to predict due to their high degree of generalization; and (iii) data portability can contribute to more competition, but its impact remains highly dependent on the effectiveness of the interoperability regime. This paper concludes that the data interoperability, especially in its vertical form, and portability rules in the DMA have the potential to improve competition in digital markets. However, policymakers need to address the identified design flaws to enhance its effectiveness and efficiency. This includes establishing common standards for functionalities and data access conditions, as well as a clarifying the relationship between these measures and existing intellectual property, data protection, and trade secret rules.
Schlagwörter: 
antitrust
big tech
competition policy
digital economy
digital ecosystems
Digital Markets Act (DMA)
gatekeepers
GAFAM
interoperability
platforms
sector-specific regulation
portability
JEL: 
K21
L40
L50
L86
Dokumentart: 
Working Paper

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