Electoral Competition in 2-Dimensional Ideology Space with Unidimensional Commitment

Dziubinski, Marcin and Roy, Jaideep (2009) Electoral Competition in 2-Dimensional Ideology Space with Unidimensional Commitment. Working Paper. The Department of Economics, Lancaster University.

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Abstract

We study a model of political competition between two candidates with two orthogonal issues, where candidates are office motivated and committed to a particular position in one of the dimensions, while having the freedom to select (credibly) any position on the other dimension. We analyse two settings: a homogeneous one, where both candidates are committed to the same dimension and a heterogeneous one, where each candidate is committed to a different dimension. We characterise and give necessary and suffcient conditions for existence of convergent and divergent Nash equilibria for distributions with a non-empty and an empty core. We identify a special point in the ideology space which we call a strict median, existence of which is strictly related to existence of divergent Nash equilibria. A central conclusion of our analysis is that for divergent equilibria, strong extremism (or differentiation) seems to be an important equilibrium feature.

Item Type: Monograph (Working Paper)
Uncontrolled Keywords: /dk/atira/pure/subjectarea/aacsb/disciplinebasedresearch
Subjects:
Departments: Lancaster University Management School > Economics
ID Code: 48944
Deposited By: ep_importer_pure
Deposited On: 11 Jul 2011 21:23
Refereed?: No
Published?: Published
Last Modified: 18 Feb 2020 00:25
URI: https://eprints.lancs.ac.uk/id/eprint/48944

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