Multiparty electoral competition in the Netherlands and Germany: A model based on multinomial probit

A typical assumption of electoral models of party competition is that parties adopt policy positions so as to maximize expected vote share. Here we use Euro-barometer survey data and European elite-study data from 1979 for the Netherlands and Germany to construct a stochastic model of voter response, based on multinomial probit estimation. For each of these countries, we estimate a pure spatial electoral voting model and a joint spatial model. The latter model also includes individual voter and demographic characteristics. The pure spatial models for the two countries quite accurately described the electoral response as a stochastic function of party positions. We use these models to perform a thought experiment so as to estimate the expected vote maximizing party positions. We go on to propose a model of internal party decision-making based both on pre-election electoral estimation and post-election coalition bargaining. This model suggests why the various parties in the period in question did not adopt vote maximizing positions. We argue that maximizing expected vote will not, in general, be a rational party strategy in multiparty political systems which are based on proportional representation.     

An integrated perspective on the three potential sources of partisan bias: Malapportionment, turnout differences, and the geographic distribution of party vote shares

Partisan bias refers to an asymmetry in the way party vote share is translated into seats, i.e., a situation where some parties are able to win a given share of seats with a lesser (share of the) vote than is true for other parties. Any districted system is potentially subject to partisan biases. We show that there are three potential sources of partisan bias: (1) differences in the nature of the vote shares of the winning candidates of different parties that give rise to differences in the proportion of each party's votes that come to be ‘wasted’—differences which arise because of the nature of the geographic distribution of partisan support; (2) turnout rate differences across districts that are linked to the partisan vote shares in those districts, such that certain parties are more likely to have ‘cheap seats’ vis-à-vis turnout; and (3) malapportionment. In the context of two-party competition over single-member districts we provide a simple formulation to calculate the independent effect of each of these three factors. We illustrate our analysis with a calculation of the magnitude and direction of effects of the three determinants of partisan bias in elections to the US House and the US Senate in 1984, 1986 and 1988; then we consider how to extend the approach to a system with a mix of single- and multi-member districts or to a weighted voting system such as the US electoral college. We then apply the method to calculate the nature and sources of partisan bias in the 1984 and 1988 US presidential elections.     

Party policy equilibrium for alternative spatial voting models: An application to the Norwegian storting

In recent years a lively debate has emerged concerning the empirical status of the traditional proximity spatial model versus a directional model of voter choice. The central reason for this scholarly interest concerns these models' contrasting implications for parties' policy positioning, with the directional model motivating parties to present extreme policies, but the proximity model promoting centrist positions. To this point, however, there exist no studies that compute parties' optimal strategies in historical elections, for these competing models. This article addresses this issue, by examining party policy strategies in a multiparty electorate for three different vote models: (a) the proximity model, (b) a directional model (c) a mixed model which combines proximity and directional components. Each model incorporates past voting history and the random effects of unmeasured variables. Using parameter estimates derived from analyses of survey data from the 1989 Norwegian Election Study we compute — for each of these vote models — the configuration of party policy positions that maximize each party's vote share in relation to those of the other parties. We find that for each model, such a vote–maximizing configuration exists, but — for the proximity model — represents an unrealistic, tightly clustered array. A mixed proximity–directional model, however, provides by far the most convincing account of parties' actual policy strategies with regard to dispersion and vote share.     

Party policy equilibrium for alternative spatial voting models: An application to the Norwegian Storting

Abstract In recent years a lively debate has emerged concerning the empirical status of the traditional proximity spatial model versus a directional model of voter choice. The central reason for this scholarly interest concerns these models' contrasting implications for parties' policy positioning, with the directional model motivating parties to present extreme policies, but the proximity model promoting centrist positions. To this point, however, there exist no studies that compute parties' optimal strategies in historical elections, for these competing models. This article addresses this issue, by examining party policy strategies in a multiparty electorate for three different vote models: (a) the proximity model, (b) a directional model (c) a mixed model which combines proximity and directional components. Each model incorporates past voting history and the random effects of unmeasured variables. Using parameter estimates derived from analyses of survey data from the 1989 Norwegian Election Study we compute — for each of these vote models — the configuration of party policy positions that maximize each party's vote share in relation to those of the other parties. We find that for each model, such a vote–maximizing configuration exists, but — for the proximity model — represents an unrealistic, tightly clustered array. A mixed proximity–directional model, however, provides by far the most convincing account of parties' actual policy strategies with regard to dispersion and vote share.     

Partisan consequences of low turnout at elections to the European Parliament

Low turnout and potential differences in party preferences between voters and non-voters may affect party vote shares at European Parliament (EP) elections. Of particular concern is the rise of Eurosceptic and populist parties, but scholars do not know whether these would benefit from increased voter mobilization. To address this gap, we simulate the party choices of non-voters at the 2009 and 2014 EP elections. Contrary to analyses of turnout effects at general elections in multiparty systems, our simulations suggest that left-leaning and ideologically moderate parties would gain if turnout went up to levels observed at first-order national elections. And while there is some evidence that populist parties might have benefitted from higher turnout at the 2014 elections (but not in 2009), our findings do not support expectations that either Eurosceptic or Europhile parties’ vote share would be affected by higher turnout.     

Disproportionality and voter turnout in new and old democracies

A long-standing puzzle in electoral research is why the disproportionality of electoral systems has a negative effect on voter participation in established democracies, but not in new democracies. We propose a learning theory of electoral system’s effects, and test it in a cross-national analysis and by using Spain as a case study. Electoral disproportionality is unrelated to voter participation in early elections after democratization, but the relationship is increasingly visible as democracies grow older. The case study uncovers two mechanisms: small parties optimize their mobilization strategy only after the first democratic elections, and the difference in the turnout rates of small party supporters and large party supporters grows over time. Time is needed before the consequences of electoral systems are fully revealed. Importantly, the findings suggest that studies carried out just after an electoral system is created or reformed may provide downward biased estimates of their long-term consequences.     

Misleading ballot position cue: Party voting in Korea's nonpartisan local elections

In this study, I present evidence that ballot order can provide a misleading cue to voters. In South Korea, nonpartisan municipal legislative elections were held concurrently with other partisan local elections until 2002. The ballot order of the candidates running in nonpartisan elections was randomly determined, whereas it was determined according to a party's number of seats in the national legislature for candidates running in partisan elections. Therefore, if voters are fully informed, the vote share for the candidate listed first in the nonpartisan ballot should not be correlated with the vote share for the party listed first on the partisan ballot. However, I find that the vote share for a first-listed candidate increases when the first-listed party's vote share increases. I also find that the presence of an incumbent does not significantly reduce the degree to which voters mistakenly use ballot position as a party cue.     

Policy Responsiveness and Incumbent Reelection in State Legislatures

Does policy responsiveness on the part of incumbent legislators affect their prospects for reelection? Recent studies of congressional campaigns demonstrate that incumbents who support policies that are more congruent with their constituents' preferences face fewer reelection obstacles. The present analysis considers this question in state legislative elections where voter knowledge of legislator activities is generally quite low. The findings demonstrate that incumbents positioned farther from the average citizen and toward their party's base are only slightly more likely to be challenged than other incumbents. However, more partisan voting incumbents do attract challengers capable of raising and spending larger amounts of money. Interestingly, incumbents positioned closer to their party's base actually receive a greater share of the vote in most contested elections. Only when challengers spend significant amounts of money do we see the positive effects of partisan voting by incumbents diminished. Overall, these findings demonstrate the mechanisms by which policy positions of incumbents in a low‐information environment affect the challengers that emerge and the level of voter support received.     

Mind the gap: How party–voter incongruence fuels the entry and support of new parties

This article examines to what extent ideological incongruence (i.e., mismatch between policy positions of voters and parties) increases the entry of new parties in national parliamentary elections and their individual-level electoral support. Current empirical research on party entry and new party support either neglects the role of party–voter incongruence, or it only examines its effect on the entry and support of specific new parties or party families. This article fills this lacuna. Based on spatial theory, we hypothesise that parties are more likely to enter when ideological incongruence between voters and parties is higher (Study 1) and that voters are more likely to vote for new parties if these stand closer to them than established parties (Study 2). Together our two studies span 17 countries between 1996 and 2016. Time-series analyses support both hypotheses. This has important implications for spatial models of elections and empirical research on party entry and new party support.     

Modeling the interaction of parties, activists and voters: Why is the political center so empty?

Abstract.  The formal stochastic model of voting should be the theoretical benchmark against which empirical models can be gauged. A standard result in the formal model is the 'mean voter theorem' stating that parties converge to the electoral center. Empirical analysis based on the vote-maximizing premise, however, invalidates this convergence result. We consider both empirical and formal models that incorporate exogeneous valence terms for the parties. Valence can be regarded as an electorally perceived attribute of each party leader that is independent of the policy position of the party. We show that the mean voter theorem is valid for empirical multinomial logit and probit models of a number of elections in the Netherlands and Britain. To account for the non-centrist policy positions of parties, we consider a more general formal model where valence is also affected by the behavior of party activists. The results suggest that non-convergent policy choice by party leaders can be understood as rational, vote-maximizing calculation by leaders in response to electoral and activist motivations.     

Electoral Selection with Parties and Primaries

We develop a model of intraparty candidate selection under partisan electoral competition and voter uncertainty. Candidates for office belong to parties, which are factions of ideologically similar candidates. Each party’s candidate for a general election can be selected either by a “centralized” mechanism that effectively randomizes over possible candidates or by voters in a primary election. The electorate cares about ideology and valence, and both primary and general elections may reveal candidate valences. Our main theoretical result is that while primaries raise the expected quality of a party’s candidates, they may hurt the ex ante preferred party in a competitive electorate by increasing the chances of revealing the opposing party’s candidates as superior. Thus, primaries are adopted in relatively extreme districts where a clear favorite party exists. An empirical analysis of the adoption of direct primaries and the competitiveness of primary elections across U.S. states supports these predictions.     

Elections and Activist Coalitions in the United States

Formal models of voting have emphasizd the mean voter theorem , that all parties should rationally adopt identical positions at the electoral mean. The lack of evidence for this assertion is a paradox or contradiction in need of resolution. This article attempts to resolve this paradox by considering an electoral model that includes "valence" or nonpolicy judgements by voters of party leaders. The theorem is used to suggest that Republican success depends on balancing the opposed demands of economic and social conservatives. Democrat success in future elections resides in overcoming the policy demands of economic liberals and gaining support from cosmopolitans—the socially liberal but economically conservative potential supporters of the party .     

The Electoral Costs of Party Loyalty in Congress

To what extent is party loyalty a liability for incumbent legislators? Past research on legislative voting and elections suggests that voters punish members who are ideologically “out of step” with their districts. In seeking to move beyond the emphasis in the literature on the effects of ideological extremity on legislative vote share, we examine how partisan loyalty can adversely affect legislators' electoral fortunes. Specifically, we estimate the effects of each legislator's party unity—the tendency of a member to vote with his or her party on salient issues that divide the two major parties—on vote margin when running for reelection. Our results suggest that party loyalty on divisive votes can indeed be a liability for incumbent House members. In fact, we find that voters are not punishing elected representatives for being too ideological; they are punishing them for being too partisan.     

Partisan legitimacy across generations

In this paper we argue that parties shape their supporters’ views about the political system via the messages they communicate about the desirability of the political system. Moreover, we contend that the effectiveness of such communication varies considerably across generations. Combining data from election surveys collected in 15 democracies as part of the Comparative Study of Electoral Systems (CSES) project with data on the policy positions of 116 political parties collected by the Comparative Manifestos Project, we find that supporters of parties that express positive positions toward the political system report systematically higher levels of political legitimacy than supporters of parties that communicate negative views. Moreover, this communication is particularly effective among older party identifiers whose partisan identification tends to be more pronounced. Taken together, these findings suggest that political parties play an active role in shaping citizens’ views of the political system but their success in mobilizing consent among citizens in contemporary democracies may weaken with partisan de-alignment and generational change.     

Simulation Analysis of the Effect of Party Identification on Finnish Parties' Optimal Positions

The Finnish National Election Study of 2003 revealed that most voters in Finland do not identify with parties and are self‐described as independents. In this article it is asserted that partisan attachments affect Finnish parties' optimal positions despite the large amount of independents. To show this, the article is divided in two parts. In the first part, voters' decisions are assumed to be deterministic. To show the effect of party identification under deterministic voting, two different types of simulations are conducted: the partisan type, where the partisans' voting behaviour depends on their distance from the party and on a degree of partisan attachment, and the apartisan type, where voting behaviour depends solely on policy issue distance. Results show that partisan attachments drive parties to adopt different ‘one‐off’ optimal positions than they would if party competition was solely based on policy issue distance. In the second part of the article, it is assumed that voters' decisions are probabilistic. Upon showing that party identification makes a voting model solely based on distance significantly more fit, the predicted probabilities of party choice are computed. Results indicate that the probability that a voter will vote for a party is higher when the party is located at its optimal position according to the partisan type of simulations rather than the apartisan one.     

Fertile soil: explaining variation in the success of Green parties

Comparative political science has largely ignored the marked cross-national variation in Green party electoral performance. This article uses a unique aggregate dataset of 347 parliamentary elections from 32 countries over the course of 45 years to test competing theories about the causes of Green party success. The findings show that voter demand, institutions and mainstream party strategy all affect the Green vote. Green parties do well in societies with post-materialist conflicts caused by high levels of wealth or the presence of a tangible environmental dispute. The article also shows that regional decentralisation helps Green parties, but electoral systems have little effect on their vote share. Most importantly, it demonstrates that the impact of mainstream party strategy on Green electoral strength is dependent on the age of the Green party. While mainstream parties can undermine young Green parties by adopting the environmental issue, this effect is reversed once the Greens have survived a number of elections. Thus ‘accommodative’ mainstream party strategies eventually boost the Green vote by increasing the salience of the key Green issue.     

Turning your back on the EU. The role of Eurosceptic parties in the 2014 European Parliament elections

This paper analyses how disaffection with the EU influenced individuals' likelihood of turning out to vote and of casting a vote for a Eurosceptic party in the 2014 EP elections, and how these relationships were moderated by the Eurosceptic partisan supply of each country. We argue that the degree to which political parties oppose European integration, as well as the ideological leaning of Eurosceptic parties, should influence both the likelihood of disaffected citizens turning out to vote, and their likelihood of voting for a Eurosceptic party. Our empirical findings show that, in the presence of a party that is strongly opposed to European integration, disaffected citizens are more likely to turn out to vote and to vote for a Eurosceptic party provided that this party also shares their ideological leaning in the left-right dimension. These results indicate that Eurosceptic parties are important actors for the politicization of the European integration conflict and for the Europeanization of EP elections, but, at the same time, they suggest that opposition to European integration is subordinate to the traditional left-right conflict.     

Candidate positioning in Britain

Policy positioning has received a great deal of attention from scholars of British politics. While numerous studies emphasize the positions taken by the Labour and Conservative parties, and how the positions of these parties have shaped citizens’ electoral behavior, few studies explore policy positioning at the candidate-level. We conduct the first quantitative study that examines the relative policy positions of British candidates during a general election. Building on findings from the study of American elections, we argue that two factors explain variation in candidate positioning in Britain: constituency-level electoral competition and a disparity in candidate quality. Using data from the 2001 British Representation Study, we find evidence that both factors are associated with a decrease in the policy contrast between candidates. Our findings suggest that, despite the differences in party control, similar factors affect candidate positioning in both Great Britain and the United States.     

Centripetal and Centrifugal Incentives under Different Electoral Systems

In a seminal article, Cox (1990) suggested that electoral systems with larger district magnitudes provide incentives for parties to advocate more extreme policy positions. In this article, we put this proposition to the test. Informed by recent advances in spatial models of party competition, we introduce a design that embeds the effect of electoral rules in the utility function of voters. We then estimate the equilibrium location of parties as the weight voters attach to the expected distribution of seats and votes changes. Our model predicts that electoral rules affect large and small parties in different ways. We find centripetal effects only for parties that are favorably biased by electoral rules. By contrast, smaller parties see their vote share decline and are pushed toward more extreme equilibrium positions. Evidence from 13 parliamentary democracies supports model predictions. Along with testing the incentives provided by electoral rules, results carry implications for the strategies of vote‐maximizing parties and for the role of small parties in multiparty competition.     

Marginalisation or legitimation? Mainstream party positioning on immigration and support for radical right parties

Abstract

Does mainstream party positioning contribute to marginalising or legitimising niche party positions? This article argues that voter perceptions of the legitimacy and credibility of niche party positions play a role in individuals’ propensity to vote for niche parties. It finds that the adoption of more restrictive immigration positions by mainstream parties increases the likelihood that those people who do not recognise the issue competence of radical right parties on immigration will vote radical right. However, for individuals who already perceive the radical right to be competent on immigration, mainstream party adoption of more restrictive immigration positions has no effect on propensity to vote radical right. In addition, the increase in the propensity of individuals to vote radical right is predominantly a function of mainstream left parties adopting more restrictive immigration positions. These results imply that mainstream parties risk fuelling radical right party support by adopting more restrictive immigration positions.