Tommaso Valletti is Professor of Economics at Imperial College London and Professor of Economics at the University of Rome. He is currently Head of the Department of Economics & Public Policy at Imperial College Business School. Non-executive director of the board of the Financial Conduct Authority and the CEPR Research and Policy Network on Competition Policy. He was Chief Economist of the European Commission (General Directorate of Competition) between 2016 and 2019, when he led the economic analysis of major mergers (e.g. Deutsche Börse/London Stock Exchange, Dow/DuPont, Bayer/Monsanto, Microsoft/LinkedIn, Siemens/Alstom), state aid and antitrust cases (e.g. Google Shopping, Google Android, Google AdSense, Qualcommivity exclusion, Qualcomm Predation, Mastercard and VISA). Tommaso graduated with a degree in engineering and a degree in engineering and a degree in Turin, a Master’s and doctorate in economics from the London School of Economics. Published in the areas of industrial economy, regulation and competition economics.