Symmetrical ICT: Difference between revisions
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Symmetrical ICT, like ordinary ICT, automatically avoids the chicken dilemma. Here is a criterion that measures for that property: |
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'''The Chicken Dilemma Criterion:''' |
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The Chicken Dilemma Criterion (CD): |
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Supporting definitions: |
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1. The A voters are the voters who prefer candidate A to every other |
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candidate. The B voters are the voters who prefer candidate B to every |
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other candidate. |
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2. The "other candidates" are the candidates other than A and B. |
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3. A particular voter votes sincerely if s/he doesn't falsify a |
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preference, or fail to vote a felt preference that the balloting |
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system in use would have allowed hir to vote in addition to the |
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preferences that s/he actually votes. |
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Premise: |
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1. The A voters and the B voters, combined, add up to more than half |
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of the voters in the election. |
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2. The A voters and the B voters all prefer both A and B to the other |
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candidates. |
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3. The A voters are more numerous than are the B voters. |
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4. Voting is sincere, except that the B voters refuse to vote A over anyone. |
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5. Candidate A would be the unique winner under sincere voting (...in |
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other words, if the B voters voted sincerely, as do all the other |
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voters). |
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Requirement: |
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B doesn't win. |
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[end of CD definition] |
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'''A few improved properties of ICT and Symmetrical ICT:''' |
'''A few improved properties of ICT and Symmetrical ICT:''' |
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I already mentioned that ICT and Symmetrical ICT meet FBC. That's the main, most important, difference between Symmetrical ICT and traditional, unimproved Condorcet. |
I already mentioned that ICT and Symmetrical ICT meet FBC. That's the main, most important, difference between Symmetrical ICT and traditional, unimproved Condorcet. |
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But, additionally, ICT and Symmetrical ICT, automatically avoid the chicken dilemma. |
But, additionally, ICT and Symmetrical ICT, automatically avoid the chicken dilemma. They meet CD, the Chicken Dilemma Criterion. |
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Another advantage of Symmetrical ICT: |
Another advantage of Symmetrical ICT: |