Ann Langley is Professor of Strategic Management at HEC Montréal, Canada. She obtained her undergraduate and master's degrees in the UK and completed her PhD at HEC Montréal after working for several years in the private and public sectors. Her empirical research deals with strategic decision making, innovation, leadership, and strategic change in pluralistic organizations and notably in the health care sector. She has a particular interest in qualitative and process research methods. She is Associate Member of the Interdisciplinary Research Group on Health at University of Montréal and Adjunct Professor at the Norwegian School of Economics and Business Administration.

Isabelle Royer is a professor of management and research methods at IAE de Lille, France, the business school of the University of Lille 1. She holds a PhD in business administration from the University of Paris-Dauphine and spent 18 months as a post-doc at the Wharton School of the University of Pennsylvania. Her research centers on decision making and innovation, with a particular interest in escalation of commitment. She has published in Harvard Business Review and French academic journals.