Maurizio Ambrosini is professor of Sociology of Migration at the University of Milan (Italy), Department of Social and Political Sciences, and chargé d’enseignement at the University Cote d'Azur (Nice, France). He is the editor of the journal “Mondi Migranti”, the Director of the Italian Summer School of Sociology of Migrations, and member of the Italian National Council of Economy and Labour (CNEL). He has published several books such as, in English, “Irregular Migration and Invisible Welfare”, and “Irregular Immigration in Southern Europe: Actors, Dynamics and Governance”. His articles have been published in several leading international journals.Minke H.J. Hajer currently works as a post-doctoral researcher at the University of Groningen, where she studies labour market integration of refugees in the Netherlands. Until October 2022 she worked as a post-doctoral researcher at the University of Milan where she was involved in research projects regarding the integration of asylum seekers in Italy and the 2020 regularisation of irregular migrant workers in Italy. She holds a joint doctorate between the University of Amsterdam and the University of Milan, for which she studied citizenship struggles of irregular migrants in social movements in Amsterdam (The Netherlands) and Turin (Italy).