Edwige completed her PhD on constitutional issues in the 1992 general election in Scotland at the Paris-Sorbonne Nouvelle University in 1997. Since then she has been teaching at the University of Valenciennes in France, first as a lecturer and then as a Professor from 2010.

Her research interests are on contemporary Scotland : institutions, politics and public policies. She has published many articles on these topics as well as the following books :  Devolution. Écosse, pays de Galles, Neuilly, Atlande, 2006 ; L'Écosse et la tentation de l'indépendance, Lille, Presses universitaires de Septentrion, April 2014 ; L'impossible indépendance de l'Écosse ?, Neuilly, Atlande, October 2014. She has co-authored Bloody Brexit, Neuilly, Atlande, April 2019.