Segnalazione bibliografica. West European Politics (March 2011), Vol. 34, N. 2, pp. 181-207 Autori: Andreas Schuck, Claes De Vreese Abstract Previous research is unclear about which citizens support the use of referendums and how a referendum campaign can affect support for direct democracy. This study investigates, first, the factors that determine support for referendums and, second, the role of the campaign in changing support. This is done in the context of the 2005 Dutch EU Constitution referendum. A media content analysis of national media (N = 6,370) is combined with panel survey data (N = 1,008). The results suggest that those who felt more politically...

Segnalazione bibliografica. British Journal of Political Science (2011), 41: 341-361 Autore: Jay K. Dow   Abstract This study evaluates the extent of party-system extremism in thirty-one electoral democracies as a function of electoral-system proportionality. It uses data from the Comparative Studies of Electoral Systems project to estimate the extent of party-system compactness or dispersion across polities and to determine whether more proportional systems foster greater ideological divergence among parties. Electoral system characteristics most associated with party-system compactness in the ideological space are investigated. The empirics show that more proportional systems support greater ideological dispersion, while less proportional systems encourage parties to cluster nearer the centre of the electoral space. This...

Segnalazione bibliografica. Autore: Richard S. Katz Party Politics January 2012 18: 3-6, Full Text: http://ppq.sagepub.com/content/18/1/3.full.pdf+html?rss=1

Segnalazione bibliografica. Autori: Brian Greenhill; Michael D. Ward; Audrey Sacks American Journal of Political Science, Volume 55, Number 4, 1 October 2011 , pp. 991-1002(12) Abstract We present a visual method for assessing the predictive power of models with binary outcomes. This technique allows the analyst to evaluate model fit based upon the models’ ability to consistently match high-probability predictions to actual occurrences of the event of interest, and low-probability predictions to nonoccurrences of the event of interest. (https://www.speedclean.com/) Unlike existing methods for assessing predictive power...