SODA voting (Simple Optionally-Delegated Approval): Difference between revisions
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imported>Abjennings (→Procedure: Simplified the procedure. Wanted to not use the term "delegate" for the candidate-to-candidate transfers in step 3.) |
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'''1. Candidates publicly declare their |
'''1. Candidates publicly declare their rankings of the other candidates''' |
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A) Before the election, all candidates must rank the other candidates (including declared write-ins) in order of preference. Equal rankings and truncation are allowed. The |
A) Before the election, all candidates must rank the other candidates (including declared write-ins) in order of preference. Equal rankings and truncation are allowed. The candidates' rankings are all made public. Later, in the "candidate voting" step, candidates may only approve other candidates in a way that is consistent with their rankings. This helps reduce the possibility of corrupt vote-selling or "smoke filled rooms". |
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'''2. Voters vote delegable plurality-style votes or non-delegable approval-style votes''' |
'''2. Voters vote delegable plurality-style votes or non-delegable approval-style votes''' |
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A) Each voter submits an approval ballot |
A) Each voter submits an approval ballot. |
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B) Any "bullet vote" - that is, a ballot which votes for only one candidate - is considered a "delegable vote" for a candidate |
B) Any "bullet vote" - that is, a ballot which votes for only one candidate - is considered a "delegable vote" for a candidate, unless the voter indicates that it should not be delegable. These votes are tallied for each candidate. |
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C) Approval totals for each candidate are also tallied. These preliminary results are announced, along with the number of "delegable votes" each candidate has. |
C) Approval totals for each candidate are also tallied. These preliminary results are announced, along with the number of "delegable votes" each candidate has. |
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D) If any candidate has an absolute majority at this point, or cannot possibly be beaten by any other candidate using the delegable votes and candidate rankings available, then they win immediately. |
D) If any candidate has an absolute majority at this point, or cannot possibly be beaten by any other candidate using the delegable votes and candidate rankings available, then they win immediately. |
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'''3. Candidates |
'''3. Candidates cast their votes publicly in the prescribed order''' |
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A) There is a brief period - perhaps a week - for candidates to analyse and negotiate based on these preliminary results. (Actually, the correct strategies for all candidates and the resulting winner will already be obvious. Usually, all candidates except this winner would concede as soon as preliminary results are announced. However, for the occasional candidate inclined to act irrationally in a way that matters - say, by not delegating to an ally, even though the alternative is to see an enemy elected - this interim period would give them a chance to rethink things and come into reason.) |
A) There is a brief period - perhaps a week - for candidates to analyse and negotiate based on these preliminary results. (Actually, the correct strategies for all candidates and the resulting winner will already be obvious. Usually, all candidates except this winner would concede as soon as preliminary results are announced. However, for the occasional candidate inclined to act irrationally in a way that matters - say, by not delegating to an ally, even though the alternative is to see an enemy elected - this interim period would give them a chance to rethink things and come into reason.) |
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B) All candidates, in descending order of the number of total votes they have, |
B) All candidates, in descending order of the number of total votes they have, choose how many other candidates they want to approve with their own vote and the delegable votes they control; that is, they choose a number N, and their "delegable vote" total is added to the approval totals of their top N favorites as announced in step one. They may choose N=0 - that is, not approve any other candidates. They may not choose N=(number of candidates) - that is, approve all other candidates. If they declared a tie in their preferences, they must either approve all candidates whom they included in that tie (as well as anyone they ranked above that), or none of them. (Note: Doing this in descending order prevents a weaker candidate from making an ultimatum to a stronger candidate, and thus strengthens the strategic equilibrium of any pairwise champion there is.) |
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'''4. Highest total wins''' |
'''4. Highest total wins''' |