Party novelty and congruence: a new approach to measuring party change and volatility
Journal article
Sikk, A. and Köker, P. 2017. Party novelty and congruence: a new approach to measuring party change and volatility. Party Politics.
Authors | Sikk, A. and Köker, P. |
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Abstract | We propose a new three-dimensional approach to party newness and an interval index of party congruence/novelty. Building on that, we also propose a split-vote-by-congruence (SBC) approach to electoral volatility that employs the index. Four elections from different countries that exhibited different forms of party change are used to illustrate the approach. The congruence/novelty index corresponds to our qualitative case knowledge and the SBC approach leads to meaningful volatility scores. Ad hoc coding of parties as new/old or singular successors/predecessors can seriously over- or underestimate volatility that explains divergence among volatility scores in literature. By eliminating the need for dichotomous and often controversial coding decisions, the SBC approach allows for a substantially more reliable calculation of volatility. |
Keywords | Electoral coalitions; new parties; party change; splits and mergers; volatility |
Year | 2017 |
Journal | Party Politics |
Publisher | SAGE |
ISSN | 1354-0688 |
Related URL | http://www.philippkoeker.com |
Publication dates | |
Online | 25 Dec 2017 |
Publication process dates | |
Deposited | 24 Nov 2017 |
Accepted | 11 Nov 2017 |
Accepted author manuscript | |
Output status | Published |
https://repository.canterbury.ac.uk/item/88683/party-novelty-and-congruence-a-new-approach-to-measuring-party-change-and-volatility
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