Evolving Competition Principles: Antitrust in the Age of Digital Transformation
The rapid and pervasive digital transformation of the global economy has fundamentally reshaped markets, presenting unprecedented challenges to traditional antitrust principles and competition law. This paper examines the evolution of competition policy in response to the rise of dominant digital platforms and data-driven business models. It analyzes the inherent characteristics of digital markets, such as multi-sided platforms, strong network effects, the critical role of data, and algorithmic pricing, that strain conventional antitrust frameworks. The research provides a comparative examination of emerging regulatory responses, with a primary focus on the European Union’s Digital Markets Act (DMA), the United Kingdom’s Digital Markets, Competition and Consumers (DMCC) Act, and the ongoing enforcement-led approach in the United States. Key research uncovers an international shift towards more proactive, ex-ante regulation to supplement traditional ex-post enforcement. However, significant jurisdictional divergences remain. The paper considers emerging challenges, including generative AI, killer acquisitions, and ensuring data portability and interoperability. It concludes by discussing the effectiveness of current strategies, the inherent balancing acts between supporting innovation and regulating market power, and the vital need for international coordination to ensure a competitive and fair digital ecosystem. This research adds to the academic and policy discourse by synthesizing the current state of digital antitrust. It identifies key trends and outlines a prospective perspective on the future of competition law in a digital world. Received: 12 March 2026 │ Accepted: 22 June 2026 │ Published: 23 July 2026