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...

Segnalazione bibliografica. Autori: Richard S. Katz, Peter Mair Party Politics January 2012 vol. 18 no. 1 107-111 Abstract A recurring problem in comparative politics is determining the extent to which models derived in one setting can be transferred directly to other settings. The original cartel party thesis was meant to account for developments that were beginning to be observed in the established democracies of western Europe in the 1990s. Many of the contemporary conditions that appeared to be driving those developments are to be found in other places, but of course preceded by quite different historical trajectories. The articles on parties and interest...

This study addresses the dynamics of the issue space in multiparty systems by examining to what extent, and under what conditions, parties respond to the issue ownership of other parties on the green issue. To understand why some issues become part and parcel of the political agenda in multiparty systems, it is crucial not only to examine the strategies of issue entrepreneurs, but also the responses of other parties. It is argued that the extent to which other parties respond to, rather than ignore, the issue mobilisation of green parties depends on two factors: how much of an electoral threat the green party poses to a specific party; and the extent to which the political and economic context makes the green issue a potential vote winner. To analyse the evolution of the green issue, a time-series cross-section analysis is conducted using data from the Comparative Manifestos Project for 19 West European countries from 1980–2010. The findings have important implications for understanding issue evolution in multiparty systems and how and why the dynamics of party competition on the green issue vary across time and space.

Although many studies of clientelism focus exclusively on vote buying, political machines often employ diverse portfolios of strategies. We provide a theoretical framework and formal model to explain how and why machines mix four clientelist strategies during elections: vote buying, turnout buying, abstention buying, and double persuasion. Machines tailor their portfolios to the political preferences and voting costs of the electorate. They also adapt their mix to at least five contextual factors: compulsory voting, ballot secrecy, political salience, machine support, and political polarization. Our analysis yields numerous insights, such as why the introduction of compulsory voting may increase vote buying, and why enhanced ballot secrecy may increase turnout buying and abstention buying. Evidence from various countries is consistent with our predictions and suggests the need for empirical studies to pay closer attention to the ways in which machines combine clientelist strategies.

Segnalazione bibliografica. Autori: Nils D. Steiner e Christian W. Martin West European Politics, Volume 35, Number 2, 1 March 2012 , pp. 238-265(28) Abstract Recent research provides evidence that economic integration has a negative effect on electoral turnout. Taking up these recent findings, this article explores the causal chain in more detail. Specifically, it argues that one way by which economic integration affects the calculus of voting is through the positioning of political parties. The expectation is that the polarisation between parties on an economic left-right scale is lower the more integrated an economy is. Consequently, electoral turnout should be lower with less polarisation...