A Doctoral Dissertation on Governing Data Sharing, with support of Gaia-X Institute

14 October 2026, Brussels, Belgium: Lucas Eustache successfully defended his doctoral dissertation, “Governing Data Sharing”, on Friday 9 October 2026 at the Governance & Regulation Chair, Université Paris Dauphine-PSL, earning the title of Doctor in Management. It draws on several theoretical and methodological approaches and examines three areas: data markets and how they work in practice; the governance of data-sharing ecosystems, meaning how participants coordinate, who sets the rules, and who orchestrates; and the role of public authorities. The Economic Theatre in Vienna is the natural next step: taking the questions of the dissertation to the people who are building data spaces.”– Lucas Eustache, PhD, Paris Dauphine-PSL University The Gaia-X Institute is an independent think tank devoted to strategic research on data exchange and the data economy, with a European and international perspective. We are proud to have supported this work over the past three years, and we look forward to seeing it feed the discussions of the Economic Theatre in Vienna.”– Hubert Tardieu, Independent Gaia-X BoD; Head of the Gaia-X Institute Lucas Eustache’s dissertation took shape alongside the Economic Theatre, which the Gaia-X Institute has organised each year since 2024 within the Gaia-X Summit. Over these three editions, the Economic Theatre has become a place where the economic questions of data sharing are tested against the realities of data space projects: how value is created and shared, who bears the costs, and what role orchestrators, participants and public authorities play. The review uses the framework developed by the Governance & Regulation Chair at Paris Dauphine-PSL, which distinguishes the roles of participants and orchestrators in data-sharing ecosystems.