Home /  Social Choice Seminar: Proportionality in ranked elections


Social Choice Seminar: Proportionality in ranked elections October 02, 2023 (10:30 AM PDT - 11:30 AM PDT)
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Location: SLMath: Baker Board Room
Speaker(s) Jeanne Clelland (University of Colorado), Moon Duchin (Tufts University)
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Proportionality in elections means the share of representation for a group is about the same as its share of support:  if Wisconsin is voting about 50-50 between Ds and Rs, then the congressional delegation should be split evenly to be considered proportional.  Now suppose we all vote in a multi-winner election by ranking our choices. What would it mean for the outcome to satisfy proportionality?  I'll propose a definition and explain some ongoing research to begin to explore it.

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