Marco Lisi is an associate professor in the Department of Political Studies, Nova University of Lisbon and researcher at IPRI-Nova. His research interests focus on political parties, electoral behaviour, interest groups and political representation. He published several articles in national and international journals such as Party Politics, Political Studies, West European Politics, among others. He coordinated several national projects and collaborated with a variety of international projects.

Theresa Reidy is a senior lecturer in the Department of Government and Politics at University College Cork. She has published widely on Irish politics, especially on electoral behaviour and political institutions. Theresa is the co-editor of a number of books, including of Politics in the Republic of Ireland and How Ireland Voted. Her research on elections and referendums has also been published in Electoral Studies, Parliamentary Affairs and Politics.

Daniela Vintila is Associate Coordinator and Senior Network Officer of IMISCOE (International Migration Research Network) at the Centre for Ethnic and Migration Studies (CEDEM) of the University of Liège. She is also chair of the ECPR Standing Group Migration and Ethnicity and of the IPSA Research Committee RC03 European Unification. Her interests lie, especially, in the areas of comparative politics, citizenship, international migration, political participation and representation, and social protection policies.