Segnalazione bibliografica. European Journal of Political Research, online version Autori: Micheal F. Effert, Thomas Gschwend Abstract Polls and coalition signals can help strategic voters in multiparty systems with proportional representation and coalition governments to optimise their vote decision. Using a laboratory experiment embedded in two real election campaigns, this study focuses on voters' attention to and perception of polls and coalition signals. The manipulation of polls and coalition signals allows a causal test of their influence on strategic voting in a realistic environment. The findings suggest that active information acquisition to form fairly accurate perceptions of election outcomes can compensate for the advantage...

What sustains stability in legislative party systems between elections? This question commands attention given the potential for change highlighted in recent work on legislative party switching. In addressing the question, this article echoes a prominent theme in research on legislatures, parties, and party systems: the importance of the party label. The novelty here is the treatment of the individual legislator’s need for manifest loyalty to the status quo party label as the chief constraint that deters incumbents from switching and underpins stability in legislative party systems. Our theory focuses on the value of stable party affiliations to voters and thus to incumbents as well. We extract testable implications and assess hypotheses against an original cross-national dataset of over 4,300 monthly observations of MP behavior in 116 legislative terms. We find that the temporal proximity to elections deters MPs’ moves. This electoral deterrent acquires particular force under candidate-centered electoral systems

This article analyses the impact of party systems on human well-being and argues that multiparty systems are associated with better welfare outcomes for two primary reasons: first, multiparty systems provide representation to multiple issue-dimensions in society, thereby indicating a more inclusive system, which ensures that diverse societal interests are taken into account during formulation of welfare policies. Second, multiparty systems also indicate a competitive party system, which provides incentives for parties to perform effectively while in office and propels parties to appeal to multiple segments of society by providing broader welfare services. The impact of party systems on human well-being is tested on a global sample of 68 democratic countries from 1975–2000. The findings show support for the hypothesized relationship between party systems and human well-being.

Many theoretical and empirical accounts of representation argue that primary elections are a polarizing influence. Likewise, many reformers advocate opening party nominations to nonmembers as a way of increasing the number of moderate elected officials. Data and measurement constraints, however, have limited the range of empirical tests of this argument. We marry a unique new data set of state legislator ideal points to a detailed accounting of primary systems in the United States to gauge the effect of primary systems on polarization. We find that the openness of a primary election has little, if any, effect on the extremism of the politicians it produces.