Ingrid van Biezen Editor

Fernando Casal Bértoa is Assistant Professor at the University of Nottingham (UK) and member of the OSCE/ODIHR "Core Group of Political Party Experts".. His work has been published in the European Journal of Political Research, West European Politics, Party Politics, Sociological Methods and Research, among others and is currently co-authoring a book titled, Party System Closure: Alliances and Innovations in Europe between 1848 and 2016.

Ingrid van Biezen is Professor of Comparative Politics at Leiden University (the Netherlands) and member of the OSCE/ODIHR "Core Group of Political Party Experts". She is the author of Political Parties in New Democracies (2003), editor of On Parties, Party Systems and Democracy (2014) and co-editor of Regulating Political Parties (2014). She has published widely on comparative party politics, party organization, political finance, and democratic theory.