Working on a research project entitled 'Public opinion, mobilizations and policies concerning asylum seekers and refugees in anti-immigrant times' (Europe and Belgium), funded by the Belgian Federal Science Policy Office (Belspo) as part of its BRAIN-be research, a team of researchers from ULB, ULiège and KU Leuven have studied people's attitudes, discourses and mobilisation towards refugees in six European countries (Belgium, Germany, Sweden, Italy, Greece and Hungary) from 2017 to 2019.

Cette étude "Tendances transatlantiques: Immigration 2011", menée par le Fonds Marshall allemand aux États Unis, est une étude comparative sur les sujets d'immigration et d'intégration dans cinq pays européens (Italie, Espagne, France, Allemagne et Royaume Uni) et aux États Unis.