Party formation and coalitional bargaining in a model of proportional representation

Siddhartha Bandyopadhyay and Mandar Oak
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Siddhartha Bandyopadhyay: University of Birmingham
Mandar Oak: Williams College

No 04-04, Discussion Papers from Department of Economics, University of Birmingham

Abstract: We study a game theoretic model of a parliamentary democracy under proportional representation where 'citizen candidates' form parties, voting occurs and governments are formed. We study the coalition governments that emerge as functions of the parties' seat shares, the size of the rents from holding o±ce and their ideologies. We show that governments may be minimal winning, minority or surplus. Moreover, coalitions may be `disconnected'. We then look at how the coalition formation game affects the incentives for party formation. Our model explains the diverse electoral outcomes seen under proportional representation and integrates models of political entry with models of coalitional bargaining.

Keywords: proportional representation; party formation; coalitions (search for similar items in EconPapers)
JEL-codes: C72 D72 H19 (search for similar items in EconPapers)
Pages: 32 pages
Date: 2004-01
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