20 research outputs found

    Sometimes You Cannot Have It All: Party Switching and Affiliation Motivations as Substitutes

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    Existing research on when legislators switch parties reports inconsistent results about motivations for switching (e.g., office, ideology, and votes). I treat the motivations for party switching as substitutes and argue that many of the inconsistencies that persist can be explained by modelling the interactive effects between these motivations. For example, scholars differ in terms of whether they find that electoral considerations are an important determinant of party switching. The conflicting findings on the independent effects of electoral considerations are explained here by demonstrating that these effects are conditional on the level of office benefits a legislators enjoys, as well as the ideological distance between the legislator and party. More generally, the empirical analysis provides strong support for the substitution effect hypothesis. Thus, modelling interactive effects increases our understanding of party switching

    Socio-economic voter profile and motives for Islamist support in Morocco

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    Based on an original dataset of merged electoral and census data, this article is a study of electoral support for the Islamist Party in Morocco in the 2002 and 2007 elections. It differentiates between the clientelistic, grievance and horizontal network type of supporters. We disentangle these profiles empirically on the basis of the role of education, wealth and exclusion for Islamist votes. We find no evidence of the clientelistic profile, but a shift from grievance in 2002 to a horizontal network profile in 2007. World Values Survey individual level data are used as a robustness check, yielding similar results. Qualitative evidence on a changing mobilization pattern of the party between 2002 and 2007 supports our conclusions

    Measuring and Comparing Party Ideology and Heterogeneity

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    Estimates of party ideological positions in Western Democracies yield useful party-level information, but lack the ability to provide insight into intraparty politics. In this paper, we generate comparable measures of latent individual policy positions from elite survey data which enable analysis of elite-level party ideology and heterogeneity. This approach has advantages over both expert surveys and approaches based on behavioral data, such as roll call voting and is directly relevant to the study of party cohesion. We generate a measure of elite positions for several European countries using a common space scaling approach and demonstrate its validity as a measure of party ideology. We then apply these data to determine the sources of party heterogeneity, focusing on the role of intraparty competition in electoral systems, nomination rules, and party goals. We find that policy-seeking parties and centralized party nomination rules reduce party heterogeneity. While intraparty competition has no effect, the presence of these electoral rules conditions the effect of district magnitude
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