Platform Antitrust 2023 Report

Multi-sided platforms—businesses that connect two or more distinct groups of users—are playing an increasingly important role in our economy, and the antitrust law and doctrine that govern these businesses are developing rapidly.

This report synthesizes relevant recent cases, scholarship, and legislative activity to provide a synopsis of how this important area of antitrust is evolving across different jurisdictions. It analyzes the types of platform conduct being targeted by plaintiffs, defenses that are gaining traction, laws and regulatory guidance affecting platforms, and much more. We hope the report proves to be an invaluable resource for businesses and counsel navigating the rapidly evolving landscape of platform antitrust.

O’Melveny brings unique perspective to platform antitrust, having represented both plaintiffs and defendants in multi-sided platform cases. We will continue to monitor this burgeoning area of law and provide updates as the issues evolve. For any questions about multi-sided platforms—or any other legal matter—don’t hesitate to contact a member of our Antitrust team.

The views of litigants, courts, and commentators summarized in this report are their own and do not necessarily reflect the views of O’Melveny & Myers, its attorneys, or its clients. This report is based on public information; it attempts to summarize parties’ respective positions and should not be construed as an endorsement of any position.