From plurality rule to proportional representation |
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Authors: | Selim Jürgen Ergun |
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Institution: | 1. GLOBE, Departamento de Teoría e Historia Económica, University of Granada, 18071, Granada, Spain
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Abstract: | I consider the decision of a parliament that might change the electoral system from the plurality rule to proportional representation
for forthcoming elections. Parties are office-motivated. They care about winning and about the share of seats obtained. I
examine two different scenarios of how parties in government share the spoils of office: equally or proportionally to their
share of seats. If the government is formed by a single party and parties expect that each party will obtain the same share
of votes in the next election, the electoral rule will never be changed. Therefore, for a change to occur, the government
should be formed by a coalition. I find that a change is more likely to occur when there is a larger number of parties and
also when the spoils of office are shared equally among the members in the governing coalition. These results are extended
to analyze the decision to change from a less proportional rule to a more proportional one. |
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Keywords: | |
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