She received her PhD at Université Paris X-Nanterre. She has published several refereed journal articles and book chapters on different ethnographic aspects of transnational migrations within sub-Saharan Africa. Her scholarship focuses on transnational identity formation, the reshaping of linguistic ideologies, sociocultural transformations triggered by new forms of mobility, socioeconomic inequalities, the impact of informal economy on language practices, and La Francophonie. She bridges sociolinguistics with other disciplines such as geography and economy. She has co-edited (with Salikoko S. Mufwene, University of Chicago) Globalization and language vitality: Perspectives from Black Africa. London: Continuum Press, 2008; and Colonisation, globalisation, vitalité du français, Paris: Odile Jacob 2014. She is currently co-editing Perspectives on language and economy