Quarterly Journal of Political Science > Vol 5 > Issue 4

Categorization-Based Spatial Voting

Nathan A. Collins, Santa Fe Institute, USA, nac@santafe.edu
 
Suggested Citation
Nathan A. Collins (2011), "Categorization-Based Spatial Voting", Quarterly Journal of Political Science: Vol. 5: No. 4, pp 357-370. http://dx.doi.org/10.1561/100.00010062

Published: 30 Jun 2011
© 2011 N. A. Collins
 
Subjects
Political psychology,  Voting behavior,  Formal modelling,  Voting theory
 

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In this article:
Approaches to Spatial Voting
Categorization-Based Spatial Voting
A Computational Model of Categorization-Based Voting
Predicted Prevalence of the Voting Types
Results
Discussion
References

Abstract

Experimental research shows that while most voters have some form of spatial preferences, individuals differ in the type of spatial preferences they have: many voters prefer candidates closer to themselves in a policy space (proximity voting), others prefer candidates that are on the same side of an issue as themselves (directional voting), and still others prefer those who will move policy closest to them (discounted proximity voting). No existing theory explains this variation. I propose a theory based on the idea that people categorize candidates and have preferences defined over categories. As a voter gains political experience, he/she makes finer distinctions between candidates, and the set of categories grows. In this way, voters move from either–or conceptions of politics that approximate directional preferences toward more detailed conceptions consistent with proximity preferences, with some cases approximating discounted proximity voting as well. I show that the categorization model accurately predicts the observed frequencies of different voting types as well as some of the observed comparative statics and observed differences in the distribution of voting types across different policy areas.

DOI:10.1561/100.00010062

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DOI: 10.1561/100.00010062_supp