Several recent works document mergers in digital markets with a particular focus on Big Tech acquisitions. They aim to quantify the levels of merger activity, the type of merger activity, and the possible motivations for the merger. In the policy debate, some commentators see entry and mergers as proof of vibrant competition in which firms compete through investments and acquisitions, while others emphasize that these mergers are potentially anti-competitive and harmful to consumers, in particular, when the acquiring party is a gatekeeper platform. There is now also a footprint left by competition authorities evaluating some of these mergers, which opens the room for detailed ex-post assessments of individual merger decisions. Where do we stand?
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