منابع مشابه
Constructing the Number of Parties
Forming an idea of the number of parties competing at elections or winning seats in legislatures is fundamental to disaggregated approaches to mapping party systems. We set out a method for systematically relating the behaviour of any ‘number of parties’ index to the size of the largest party’s vote and the numbers of parties in competition. This approach shows that the ‘effective number of par...
متن کاملDimensionality and the number of parties in legislative elections
This article explores how the party-defined dimensionality of political competition relates to the number of parties competing in legislative elections. It demonstrates that a mathematical relationship between the number of electoral parties and the literature’s concept of dimensionality follows from the variables’ definitions; conversely, it argues that exploring the relationship between the n...
متن کاملDistrict magnitude , electoral formula , and the number of parties KENNETH
Duverger’s propositions concerning the psychological and mechanical consequences of electoral rules have previously been examined mainly through the lens of district magnitude, comparing the properties of single-member district plurality elections with those of multimember proportional representation elections. The empirical consequences of multimember plurality (MMP) rules, on the other hand, ...
متن کاملConstructing Structure in Number Sequences
This paper reports on a design experiment in the domain of number sequences conducted in the course of the WebLabs project1. In this study, we designed and tested a set of activities in which 13-14 year old students use the ToonTalk programming environment to construct models of sequences and series, and then use the WebReports web-based collaboration system to share these models and their obse...
متن کاملHow many political parties are there, really? A new measure of the ideologically cognizable number of parties/party groupings
We offer a new measure of the ideologically cognizable number of political parties/party groupings that is intended to be complementary to the standard approach to counting the effective number of political parties – the Laakso–Taagepera index (1979). This approach allows the possibility of precise measurement of concepts such as polarized pluralism or fragmented bipolarism and is applicable to...
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ژورنال
عنوان ژورنال: Party Politics
سال: 2003
ISSN: 1354-0688,1460-3683
DOI: 10.1177/1354068803009003002