Michael Holmes is Associate Professor of Political Science at ESPOL (European School of Political and Social Sciences) at the Catholic University of Lille, France. His research focuses mainly on Ireland and the EU and on the impact of European integration on political parties.

Kathryn Simpson is Associate Professor of Economics and Politics of the European Union at Keele Business School and School of Social, Political and Studies at Keele University, UK. Her research focuses on public opinion, political behaviour and attitudes towards the EU, in particular in Ireland and the UK in the context of Brexit.