Olivier Bahn holds an M.Sc. in Information Technology from the CNAM (France) and a Ph.D. in Management Science from the University of Geneva (Switzerland). After completing his doctoral studies, he joined the Paul Scherrer Institute, a Swiss research center affiliated to the Swiss Federal Institutes of Technology, to head up several research projects analyzing Swiss and European climate and energy policies. Since 2003, he has been a professor (Full Professor, since 2015) in the Department of Decision Sciences at HEC Montréal, which he chaired between June 2016 and May 2019. There he teaches, at the postgraduate level, management science courses. In addition to directing the Group for Research in Decision Analysis (GERAD, since June 2019), he is also co-director of the e3c Hub (environment, energy and circular economy) at HEC Montréal (since June 2016). He is an Associate Editor of the journals Energies, Energy Strategy Reviews, and Environmental Modeling and Assessment. His research currently focuses on energy economics (decarbonization issues) and climate policy modeling. His research is published in numerous scientific journals, including: Applied Energy, Automatica, Climatic Change, Energy Conversion and Management, Energy Policy, Environmental Science and Policy, Environmental Science and Technology, International Journal of Hydrogen, Journal of Cleaner Production, Mathematical Programming, The Energy Journal, and Renewable and Sustainable Energy Reviews. He is also a consultant to several companies, governments and organizations.