Annotation

The article analyzes antitrust approaches to regulating digital gatekeepers – entities that provide access to digital platform services. The characteristics of such entities (network effects, multilateralism, user dependence) and typical anti-competitive practices are considered: self-preference, data portability barriers, harmful acquisitions, binding. The approaches of the EU, the UK, Russia and China are compared. The article highlights the difference between the legal status of a gatekeeper and the traditional dominant position, and justifies the use of the SSNDQ (Quality Reduction) test instead of the classic SSNIP.