Research Repository

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The volatility of volatility: measuring change in party vote shares (2017)
Journal Article
Casal Bertoa, F., Deegan-Krause, K., & Haughton, T. (in press). The volatility of volatility: measuring change in party vote shares. Electoral Studies, 50, doi:10.1016/j.electstud.2017.09.007. ISSN 0261-3794

Volatility is a widely used term in political science, but even the most widely used measure of volatility, Pedersen's index, can mask as much as it reveals. His simple and elegant calculation has become part of the political science toolbox, but sch... Read More

Parties between thresholds: state subsidies and party behaviour in post-communist democracies (2017)
Journal Article
Casal Bertoa, F., & Spirova, M. (2017). Parties between thresholds: state subsidies and party behaviour in post-communist democracies. Party Politics, doi:10.1177/1354068817710221. ISSN 1354-0688

Much has been written about what makes political parties form, persist, change and die. One factor often brought into this discussion is the availability of resources in general and of state financing of political parties in particular. However, an e... Read More

Political parties or party systems?: assessing the ‘myth’ of institutionalization and democracy (2016)
Journal Article
Casal Bértoa, F. (in press). Political parties or party systems?: assessing the ‘myth’ of institutionalization and democracy. West European Politics, doi:10.1080/01402382.2016.1216921. ISSN 0140-2382

No matter the region of the world under study, party (system) institutionalisation has been traditionally considered to be a necessary, but not sufficient, condition for the survival of democracy. Despite being one of the most quoted statements in th... Read More

It’s been mostly about money!: a multi-method research approach to the sources of institutionalization (2015)
Journal Article
Casal Bértoa, F. (in press). It’s been mostly about money!: a multi-method research approach to the sources of institutionalization. Sociological Methods and Research, doi:10.1177/0049124115588998

Although much has been written about the process of party system insti- tutionalization in different regions, the reasons why some party systems institutionalize while others do not still remain a mystery. Seeking to fill this lacuna in the literatur... Read More

Party system closure and openness: conceptualization, operationalization and validation (2014)
Journal Article
Casal Bertoa, F., & Enyedi, Z. (2016). Party system closure and openness: conceptualization, operationalization and validation. Party Politics, 22(3), doi:10.1177/1354068814549340. ISSN 1354-0688

The degree of closure of the governmental arena is a central aspect of the stabilization of party systems, and yet little systematic effort has been devoted to its operationalization. The article proposes a new index, examines its reliability and val... Read More