Formal models of elections have emphasized the convergence of party leaders towards the center of the electoral distribution. This paper discusses various political episodes in British and US history to suggest that political divergence is generic. This leads to the inference that political choice involves electoral judgment as well as preference. The stochastic electoral model is extended to incorporate the basis of judgment, namely valence. The model suggests that when the electoral system is based on proportional electoral methods, then there will be numerous parties with very di¤erent valences, adopting very divergent positions. Under plurality rule, on the other hand, the role of activists appears to restrict the number of parties to two, and to cause a slow political rotation in the policy space.
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Paper provided by ICER - International Centre for Economic Research in its series ICER Working Papers with number
33-2007.
Length: 51 pages Date of creation: Mar 2007 Date of revision: Handle: RePEc:icr:wpicer:33-2007
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McKelvey, R. D. & Schofield, N., 1984.
"Structural Instability of the Core,"
Working Papers
535, California Institute of Technology, Division of the Humanities and Social Sciences.
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