Abstract
Regarding the recent success of new anti-political-establishment parties across the Europe, the development and persistence of party organizations presents one of the most prominent research agendas in contemporary party research. Regarding the overall level of party institutionalization, it is necessary to understand to what extent political party is capable to gain and sustain electoral stability.
The second substantial question is what the organizational strategies of the new parties are facing the lack of internal sources of institutionalization. The paper discusses different concepts of electoral stabilization, namely aggregated and individual electoral volatility, party nationalisation score and patterns of electorate's socio-demographic characteristics.
Performance of nine Czech political parties in general elections over time were chosen as cases to cover organizational variability among different party families and organizational forms. The data for analysis were mainly collected from electoral statistics and registers.
Individual-level data for the Czech Republic were then extracted from international sociological survey "Comparative Study of Electoral Systems".