Prior to his appointment at the Rotman School of Management, Prof. Masson was Visiting Fellow at the Brookings Institution in Washington, D.C. For the previous eighteen years he worked at the International Monetary Fund (IMF) in the Research, European, and African departments, ending as Senior Advisor.
Avant sa nomination à la Rotman School of Management, il était chercheur invité à la Brookings Institution, à Washington. Auparavant, M. Masson a travaillé pendant 18 ans dans les départements Afrique, Europe et des études du Fonds monétaire international, où il était conseiller principal avant son départ.