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In recent years, Voting Advice Applications (VAAs) have become a relevant object of political science research. The aim of this paper is to develop a map of the existing literature and to outline a research agenda for this increasingly relevant tool and its role within modern democracies. Starting point of the paper is the dissemination of VAAs in Europe, focusing on the differences and similarities between the main types of VAAs. After having outlined the reasons for the dramatic spread of VAAs among European countries and voters, we provide an overview on the existing VAA literature. We then present a comparative research agenda for the VAAs by identifying questions that could be posed to the tools and their role out of different analytical perspectives. In the conclusion, we bring forward the argument that VAAs might matter even more in the future, indicating the need for a coordinated research effort.

This article investigates the effects of the deep transformations in the relationship between West European class‐mass parties and their electorates. Particular attention is paid to the changing nature of individuals' partisan attachments, which are hypothesized to be less rooted in social and ideological identities and more in individual attitudes towards increasingly visible partisan objects. The main objective of this article is to examine the influence of voters' attitudes towards one of these “objects”—the party leaders—in determining psychological attachments with the parties. The analysis concentrates on the two main cleavage‐based parties in Britain, Germany, Italy, and the Netherlands. The empirical findings highlight the declining ability of social identities (class and religious) to predict individual feelings of partisan attachment, as well as the growing influence of voters' attitudes towards party leaders. The concluding section points to the crucial role that political psychology can play in our understanding of democratic elections' outcomes.

Voting Advice Applications (VAAs) help users casting a vote by offering an explicit ranking of viable options. The wide amount of readily available information provided by VAAs to users has been shown to contribute to reducing the transactional costs involved in gathering relevant political information. Available evidence also supports the idea that VAA users are more likely to cast a ballot in elections as a result. The extent to which electoral participation is caused by using a VAA, however, remains unclear. Against this background, we reassess the mobilizing effect of VAAs by means of a multi-method approach. Our cross-sectional analysis of 12 national election study data sets provides further support to the idea that VAA usage increases users' chances of casting a ballot in elections as compared to non-users. This conclusion is strengthened by the results of a randomized field experiment conducted in the context of the 2013 Italian parliamentary election.

Partisan dealignment is recurrently presented in the literature as one of the main drivers of the 'personalisation of politics'. Yet, on the one hand, the claim that leader effects on voting behaviour are increasing across time is short on comparative evidence. On the other hand, there is limited empirical evidence that such an increase is due to dealignment. This article explores the longitudinal relationship between partisan dealignment, leader effects and party choice, through a novel dataset pooling 109 national election surveys collected in 14 Western European parliamentary democracies across the last six decades. The results show that leader effects increased over time as a function of the decline of party identification. Additional panel evidence from selected countries shows that partisan dealignment is responsible for increasing leader effects on party choice at the individual level. The longitudinal dimension of this study contributes to the most contested aspect of the personalisation of politics debate.KEYWORDS Dealignment; leader effects; party identification; personalisation of politics; voting behaviourThe centrality of political leaders in contemporary democracies has been sustained by an increasing amount of research in political science. From an institutional point of view, research documents a transformation in the structure and organisation of modern political parties in favour of the leadership position. From the rise of catch-all parties to the emergence of personal parties, contemporary party scholars ascribe a more prominent role to party leaders both within party organisation and as executives in government. This describes a trend towards the presidentialisation of party structures (Passarelli 2015;Poguntke and Webb 2005).