Electoral competition in 2-dimensional ideology space with unidimensional commitment
AbstractWe 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 slect (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 sufficient conditions for existence of convergent and divergent Nash equilibria for distributions with a non-empty and an empty core. We identify a special point on the ideology space whcih we call a strict median, existence of which is strictly related to existence of divergent Nash equilibria. A central conclusion of our anlysis is that for divergent equilibria, strong extremism (or differentiation) seems to be an important equlibrium feature.
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Bibliographic InfoArticle provided by Springer in its journal Social Choice and Welfare.
Volume (Year): 36 (2011)
Issue (Month): 1 (January)
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Web page: http://link.springer.de/link/service/journals/00355/index.htm
Other versions of this item:
- Marcin Dziubinski & Jaideep Roy, 2008. "Electoral Competition in 2-Dimensional Ideology Space with Unidimensional Commitment," CEDI Discussion Paper Series 08-19, Centre for Economic Development and Institutions(CEDI), Brunel University.
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