An HEC Montréal Professor (1984–2022) and the holder of the Chair in Strategy and Society (2002–2021), his interests include the strategic management of complex organizations, in particular diversified and geographically dispersed companies, non-profit organizations, public-sector companies and governments. A prolific author, he has 38 books and monographs to his credit, and founded International Management magazine, which he directed until 2004.