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Range Voting

Range Voting. What is Range Voting?. From Wikipedia:

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Range Voting

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  1. Range Voting

  2. What is Range Voting? From Wikipedia: “Range voting (also called ratings summation, average voting, cardinal ratings, score voting, 0–99 voting, the score system, or the point system) is a voting method for one-seat elections under which voters score each candidate, the scores are added up, and the candidate with the highest score wins.” Similar to: • Surveys • Media reviews • “Hot or Not” • Athletic judgment processes

  3. What is Range Voting? (cont.) • Assumes the “right” winner is the one whose election results in least amount of social dissatisfaction, counterbalancing sheer numbers • Bayesian Regret • Goodbye Majority Rule!!! • Ex: I might win the majority of votes, but the losing minority is more dissatisfied with my election than my majority would have been if my opponent had won.

  4. Historical Usage Sparta?

  5. For Example http://en.wikipedia.org/wiki/Range_voting

  6. Arrow’s Impossibility Theorem Ranged voting satisfies the criteria of a deterministic voting system, with non-imposition, non-dictatorship, monotonicity, and independence of irrelevant alternatives (sometimes), but the method does not violate Arrow’s Impossibility Theorem because it utilizes scoring rather than ranking (violating Arrow’s universality criterion).

  7. Advantages of Range Voting • Overlapping Support? No Problem! • Taft/Roosevelt in 1912 (Wilson says “Thanks Mr. Bull Moose”) • Nader/Gore in 2000 (Bush says “Thanks Green Party”) • At least that guy didn’t win • Proponents: • http://rangevoting.org/ • http://www.electology.org/ • William Poundstone, Gaming the Vote: Why Elections Aren’t Fair (and What We Can Do About It)

  8. Problems • Voter ignorance • Range voting is kinda complicated • Preference isn’t 1-10 • Subjectivity • Use of tactical voting • Sincerity • Min/Maxing (like in RPG’s) • The cost of change

  9. Discussion Would you advocate the use of this system in politics? In any election? Can you think of any other problems with this system of voting? Any questions?

  10. References http://en.wikipedia.org/wiki/Range_voting http://archive.fairvote.org/rangevoting.pdf http://rangevoting.org/ http://www.motherjones.com/politics/2008/01/verdict-our-voting-system-loser http://marginalrevolution.com/marginalrevolution/2009/11/range-voting.html http://badlandsbadley.files.wordpress.com/2011/04/america.jpg http://www1.us.elsevierhealth.com/faces/graphics/FACES0600.bmp http://www.ebaumsworld.com/pictures/view/51413/

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