Depleting democracies provides an analysis of the radical right's interactions with mainstream parties and the effect they have on setting political agendas in sensitive areas such as minority policies and asylum regulations. It asks to what extent the radical right has changed the quality of democracy in Eastern Europe: does its electoral strength, its capacity for political blackmail and its coalition potential actually translate into impact?

The book compares three groups of countries that are distinct in terms of the relevance of radical right parties: Bulgaria and Slovakia; Hungary, Poland and Romania; and the Czech Republic and Estonia. It follows a mixed-methods approach, combining quantitative analysis of survey data with qualitative, comparative analysis of archival material and other texts to determine the causal role radical right parties play in influencing parties, policies and ultimately democratic quality in the seven countries.

Depleting democracies advances theory on radical right actors in the political process and contributes to empirical research across the region. Its results are particularly relevant to the debate on democratic transformation and the effects of radical right parties.