A wide range of studies find that democracies experience more terrorism than non-democracies. However, surprisingly little terrorism research takes into account the variation among democracies in terms of their electoral institutions. Furthermore, despite much discussion of the differences in terrorist groups’ goals in the literature, little quantitative work distinguishes among groups with different goals, and none explores whether and how the influence of electoral institutions varies among groups with different goals. The argument in this article posits that electoral institutions influence the emergence of within-system groups, which seek policy changes, but do not influence the emergence of anti-system groups, which seek a complete overthrow of the existing regime and government. The study finds that within-system groups are significantly less likely to emerge in democracies that have a proportional representation system and higher levels of district magnitude, while neither of these factors affects the emergence of anti-system groups.

Abstract This article examines the electoral impact of spillover effects in local campaigns in Britain. For the first time, this is applied to the long as well as the short campaign. Using spatial econometric modelling on constituency data from the 2010 general election, there is clear empirical evidence that, in both campaign periods, the more a party spends on campaigning in constituencies adjacent to constituency i, the more votes it gets in constituency i. Of the three major political parties, the Liberal Democrats obtained the greatest electoral payoff. Future empirical analyses of voting at the constituency scale must, therefore, explicitly take account of spatial heterogeneity in order to correctly gauge the magnitude and significance of factors that affect parties' parliamentary performance.

Abstract Under evaluative voting, the voter freely grades each candidate on a numerical scale, with the winning candidate being determined by the sum of the grades they receive. This paper compares evaluative voting with the two-round system, reporting on an experiment, conducted during the 2012 French presidential election, which attracted 2,340 participants. Here we show that the two-round system favors “exclusive” candidates, that is candidates who elicit strong feelings, while evaluative rules favor “inclusive” candidates, that is candidates who attract the support of a large span of the electorate. These differences are explained by two complementary reasons: the opportunity for the voter to support several candidates under evaluative voting rules, and the specific pattern of strategic voting under the two-round voting rule.

We propose a framework for analysing party elite perceptions of voting behaviour based on four party competition and voting behaviour models: the Downsian proximity, saliency, competence and directional models. We analyse whether and to what extent party elite perceptions support these theories of party competition and voting behaviour. Empirical analysis is based solely on internal party documents from two Swedish parties, the Social Democrats and the Conservatives, from 1964 to 1988/1991. We demonstrate that elements of all four party competition models have characterized Swedish party elite thinking and reasoning about voting behaviour in recent decades. Discussion in the Social Democratic elite was most in line with Downs' model. Until the mid-1970s, Downs' model tended to be combined with the competence model and thereafter with the saliency model. The Conservative elite clearly favoured the salience and competence models until the early 1970s and the saliency and Downs' models since then.

While there are many studies on the impact of the economy on elections, there is little evidence on the full mechanism of economic voting implied by performance-based theories of elections. Addressing the scarcity of evidence on the mechanism, this study provides the first estimates of the linkage between macroeconomic performance, individual economic evaluations, and vote choice. Building on recent advances in the statistical analysis of causal mechanisms, we conduct a causal mediation analysis in a data set covering 151 surveys in 18 countries. We find that the effect of economic performance on the incumbent vote is largely accounted for by voters’ retrospective evaluations of the national economy. The effect is stronger in contexts where policymaking power is concentrated rather than dispersed. Altogether, the results imply that the performance-based channel of voting is more relevant in accounting for election outcomes than suggested by recent individual-level studies.