- Mathematics, statistics, econometrics
- Dynamic systems in demography, economics, and social history
- Population genetics
- Epidemiology
- Associate editor of Populations (MDPI Publishers, Switzerland), 2024
- Editor-in-chief of Mathematical Population Studies, Taylor and Francis Science Publishers,2003 (10(2))-2024 (31(2))
- Professor (Directeur d'études) at École des hautes études en sciences sociales