I. Enhancing accountability -- Reshaping platform-driven digital markets / Marina Mazzucato, Josh Enstminger, and Rainer Kattel Reforming competition and media—the German approach / Sarah Hartmann and Bernd Holznagel -- Overcoming market power in online video platforms / Eli M. Noam -- Enabling community-owned platforms — a proposal for a tech new deal / Nathan Schneider -- II. Increasing accountability -- Obliging platforms to accept a duty of care / Lorna woods and William Perrin Minimizing data-driven targeting and providing a public search alternative / Angela Phillips and Eleonora Maria Mazzoli -- Accelerating adoption of a digital intermediary tax / Elda Brogi and Roberta Maria Carlini -- III. Safeguarding privacy -- Treating dominant digital platforms as public trustees / Philip M. Napoli -- Establishing auditing intermediaries to verify platform data / Ben Wagner and Lubos Kuklis -- Promoting data for well-being while minimizing stigma / Frank Pasquale -- IV. Protecting democracy -- Responding to disinformation : ten recommendations for regulatory action and forbearance / Chris Marsden, Ian Brown, and Michael Veale -- Creating new electoral public spheres / Martin Moore -- Transposing public service media obligations to dominant platforms / Jacob Rowbottom -- V. Reforming governance -- A model for global governance of platforms / Robert Fay -- Determining our technological and democratic future : a wish list / Paul Nemitz and Matthias Pfeffer -- Reconceptualizing media freedom / Damian Tambini -- A new social contract for platforms / Victor Pickard -- Conclusion : without a holistic vision, democratic media reforms may fail / Martin Moore and Damian Tambini.