An inquiry into the return mobility of scientific researchers in Europe

[EN] Against the current of scientific researchers moving to universities and research institutes outside their home countries, there is also an observable flow of researchers who relocate back to their home countries following a foreign stay. The aim of this report is to take stock of conceptual and measurement issues related to this phenomenon, referred to as the ¿return mobility¿ of researchers. In the context of European policies striving to promote excellent research while realizing it by efficient spending, there are fears that researcher mobility towards centers of excellence (seen as ¿brain drain¿ in ¿net exporter¿ countries) further widens the gap between regions of Europe. This fear is behind a growing concern for fostering the return mobility of talented researchers to ensure a more equal distribution of research capacity.