Francisco Colom González is Research Professor at the Institute of Philosophy of the Spanish National Research Council (CSIC) in Madrid. His work deals with the normative relations between culture, political identity and social change. His most recent publications is The Traditions of Liberty in the Atlantic World, edited with A. Rivero (2016).

Gianni D'Amato is Professor at the University of Neuchâtel and Director of the Swiss Forum of Migration and Population Studies. His research interests are focused on citizenship, mobilities, populism and the history of migration. His most recent publication is The Politicization of Migration, edited with W. van den Brug, D. Ruedin and J. Berkhout (2015)