While institutional theories of party system size are usually examined cross‐nationally, there is ample reason to expect that changes in electoral institutions will affect party system size within countries as well. Although some of this effect may occur immediately, most of the effects are likely to be realised over time and across subsequent elections. A series of error‐correction models examine the short‐ and long‐term effects of changes in electoral institutions on party system size. The results indicate that changes in electoral institutions do produce the expected effects on party system size, and that these effects occur mostly over the long term.

Different types of interest groups use different lobbying strategies. This article presents an investigation of this already well‐established hypothesis once more, but additionally proposes that the institutional framework of the country in which interest groups operate also influences their lobbying behaviour. More specifically, it is shown that groups working in the interest of the public are better integrated into the policy‐making process when direct democratic instruments, such as referendums, occur regularly (as in Switzerland) than when referendums are the exception (Germany). The article demonstrates that Swiss cause groups – often also referred to as ‘public interest groups’ in the literature – use a more balanced mixture of insider and outsider strategies than their German peers, but also that this moderating effect cannot be found for specific interest groups, such as industry groups or unions.

Two new studies challenge the prevailing consensus that proportional representation (PR) systems produce greater ideological congruence between governments and their citizens than majoritarian ones. This has led to what has become known as the ‘ideological congruence controversy’. G. Bingham Powell claims to resolve this controversy in favour of PR systems. Specifically, he argues that the results from the two new studies are based on an anomalous decade and that PR systems generally do produce greater government congruence. In addition, he also asserts that PR systems exhibit less variability in government congruence. In this article, the empirical evidence for these two claims is re‐evaluated using exactly the same data as employed by Powell. The analysis indicates that although PR systems produce better and more consistent representation in the legislature, they do not hold an advantage when it comes to representation at the governmental level.

American states continue to experiment with new forms of electoral institutions, including various nonpartisan election systems. One such rule, the “top-two” procedure, allows all voters to choose any candidate in the primary, advancing whichever two candidates obtain the most votes to the general election. These general elections may feature two candidates of the same party. This paper uses data from California, the largest state to adopt this rule, to examine participation and competition in the last five elections before the top-two procedure (2002 to 2010) and the first five after it (2012 to 2020), investigating the potential trade-off between the roll-off and increased competition. We find that while roll-off occurs with copartisan elections, the compensating increases in competition are substantial. Furthermore, with this system, the meaningful competition shifts toward the higher turnout general elections, which calls into question whether there is much of a participatory cost at all. Additionally, we leverage the unusual cases of write-in candidates to illustrate the electoral dynamics of these elections, highlighting the difficulty of implementing accountability with cross-party elections while demonstrating the behavioral potential of copartisan elections.

Do elected judges tailor criminal sentences to the electorate’s ideology? Utilizing sentencing data from North Carolina’s Superior Courts—which transitioned from statewide to local elections in 1996—we study whether judges are obliging to voters’ preferences. We find some evidence of responsiveness: judges from liberal districts were more lenient, while those from moderately conservative districts assigned harsher sentences. Judges from increasingly conservative districts did not change their sentencing patterns, which leads to lower re-election rates. These findings suggest that judges adapt their behavior to retain office, or else they are held accountable by the public.

While dislike of opposing parties, that is, affective polarization, is a defining feature of contemporary politics, research on this topic largely centers on the United States. We introduce an approach that analyzes affective polarization between pairs of parties, bridging the US two-party system and multiparty systems in other democracies. Analyzing survey data from twenty Western democracies since the mid-1990s, first, we show that partisans' dislike of out-parties is linked to elite policy disagreements on economic issues and, increasingly over time, also to cultural issues. Secondly, we argue and empirically demonstrate that governing coalition partners in parliamentary democracies display much warmer feelings toward each other than we would expect based on elite policy (dis)agreements. Third, we show that radical right parties are disliked much more intensely than we would expect based on policy disputes and coalition arrangements. These findings highlight the policy-based and institutional underpinnings of affective polarization.

Research has shown that Japan's parallel electoral system altered the incentives that parties and their members face when competing for lower-house seats, leading to, among other things, more policy-oriented and less personalistic elections. What is less well known is how these altered incentives affect the decisions of incumbents to stay with their current party organizations or exit and join another political party. We address this question by using data from the 2017 snap election in Japan, specifically, the exit decisions of Democratic Party of Japan (DPJ) incumbents. Typically exit decisions involve considerations of electoral support, policy, or increased office benefits. Our results indicate that policy considerations were a primary factor in DPJ members' exit decisions but also that exiting legislators considered the risks associated with these decisions, which was molded by available party alternatives, each's electoral strength, and a unique feature of Japan's electoral rules, the fact that it reduced the electoral risk for some but not all incumbents who contemplated switching parties.

Can non-citizen enfranchisement policies reduce the turnout gap between citizens with an immigration background and native citizen voters? While increasingly common in practice, there are only a handful of studies on the political consequences of non-citizen enfranchisement on voter mobilisation. Here, we examine the impact of non-citizen voting (NCV) rights on the political participation of citizens with and without an immigration background. Focusing on Switzerland, we use high-quality household panel data (SHP) from 1999 to 2014, leveraging both longitudinal and municipal level variation of enfranchisement laws when identifying their effect on turnout. We show that NCV rights boost political participation overall, and it particularly enhances turnout among citizens with an immigration background. Our analysis adds to existing theoretical explanations and empirical debates on representation and political participation in diverse democratic societies with large immigrant populations.

As scholars explore opportunities for democratic renewal, the potential of ballot structures to improve the quality of representation has been largely neglected. We argue that expressive ballots can improve the congruence of political preferences between voters and their vote choice and, subsequently, decrease parliamentary polarization. Recognizing that voters’ political preferences are more complex than a dichotomous party-vote allows, we propose the ‘assembly ballot’, which allows voters to choose their ‘ideal parliament’ by distributing 150 parliamentary seats across all participating parties. To assess the consequences of the assembly ballot for ideological congruence and parliamentary composition, we conducted a survey experiment with over 16,000 respondents around the 2017 Dutch parliamentary elections in which respondents cast a vote in a mock-election using the assembly ballot or a closed-list PR ballot. Results show that ideological congruence is, on average, significantly higher for voters voting with the assembly ballot for both the left–right dimension and the cultural dimension, while also producing a more centripetal, less polarized parliament.

A long tradition of studies in political science has unveiled the effects of electoral institutions on party systems and parliamentary representation. Yet their effects on campaign activities remain overlooked. Research in this tradition still lacks a strong comparative element able to explore the nuanced role of electoral institutions in shaping individual-level campaigns during first-order parliamentary elections. This study uses data from a variety of national candidate studies to address this lacuna, and shows that the structure of electoral institutions affects the electoral mobilization efforts put in place by candidates. Candidate-centred electoral systems incentivize more intense and complex mobilization efforts, and shift the campaign focus towards individuals rather than parties. By directly addressing the effects of electoral institutions on campaign behaviour, this study contributes to the wider debate on their role in promoting political engagement and mobilization. These results indicate that electoral institutions affect political competition much more than previously thought.

Electoral institutions shape the incentives of governments to rely on distributive measures and to comply with international obligations because of the misalignment they may engender between the collective objectives of a government party and the individual objectives of its members in the legislature. We use this argument to explain the puzzle of unlawful state aid measures in the European Union (EU). Existing theories of EU compliance and implementation offer no convincing explanation to their persistence and patterns. Using data from 2000 to 2012, we find that an increase of district magnitude improves compliance. However, compliance decreases with higher magnitude where either party leaders have no control over the ballot rank or other electoral rules strengthen the incentives to search for a personal vote. We also provide evidence for the effects of electoral reforms on compliance. These results have implications for the broader literature on compliance with international regimes.

Grassroots democracy has been practised in rural China for more than a decade. However, despite the existence of a mountain of evidence, evaluations of the quality of China's rural grassroots democracy, particularly electoral institutions, have unfortunately been inconclusive, due to primary reliance on case studies and local surveys. Moreover, the lack of comparable data over time prohibits effective studies on the evolution of grassroots democracy in Chinese villages. This article tries to provide some systematic information on how village committee elections are practised and have evolved in China, using two village surveys based on comparable national probability samples, implemented in 2002 and 2005 respectively. It further explores the validity of some key theories in contemporary literature on the uneven implementation of village committee elections in China with the help of an integrated regression model.