Merger Control in Digital Markets: New Challenges and Old Problems

This paper delves into the complexities surrounding mergers in digital markets, presenting three key challenges in evaluating the impact of large technology platform mergers on competition conditions. Firstly, it addresses the difficulties in market definition due to rapidly evolving business models and intrinsic characteristics of multilateral platforms in digital markets. Secondly, it explores the suitability of the “killer acquisitions” theory of harm, asserting that not all start-up acqu