Özlem Bedre Defolie is an Associate Professor of Economics (with tenure) at ESMT Berlin, an affiliated Associate Professor at University of Bergen, and a research fellow at the Centre for Economic Policy Research (CEPR). She received her PhD in Economics from Toulouse School of Economics, France, in 2009. She spent a year as a Post-doctoral Research Fellow at Ecole Polytechnique in Paris before joining ESMT. Her main research areas are applied microeconomic theory and industrial organization. She studies economics of multi-sided platforms, multiproduct firms, vertical contracts focusing on antitrust and regulation questions. She has been awarded the prestigious European Research Council (ERC) Starting grant (2020-2025) for her work investigating optimal variety and quality provision by digital platforms, like online marketplaces. She is a member of the Board of Directors, BCCP Berlin Centre for Consumer Policies, Berlin, since April 2019, and a member of the Industrial Economics committee of the German Economic Association