Scoring Rule Voting Games and Dominance Solvability

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Working paper
Lucia Buenrostro and Amrita Dhillon
Issue number: 
University of Warwick
This paper studies the dominance-solvability (by iterated deletion of weakly dominated strategies) of general scoring rule voting games. The scoring rules we study include Plurality rule, Approval voting, Negative Plurality Rule, Borda rule and Relative Utilitarianism. We provide a classification of scoring rule voting games according to whether the sufficient conditions for dominance solvability require sufficient agreement on the best alternative or on the worst alternative. We also characterize the solutions when the sufficient conditions for dominance solvability are satisfied.
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