SODA voting (Simple Optionally-Delegated Approval): Difference between revisions

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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.)
 
B) All candidates, in descending order of the number of delegabletotal votes they have, publicly delegate their votes; 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 delegate their vote to anyone. They may not choose N=(number of candidates) - that is, delegate their votes to everyone. If they declared a tie in their preferences, they must either delegate to 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.) Votes may not be re-delegated.
 
'''4. Highest total wins'''
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==== More-sophisticated final win criterion ====
Optional alternate rule 4: it would be possible, if there were multiple candidates with an absolute majority at this point, to choose the one of them with the highest initial total. That would be equivalent to considering the delegated votes as middle-rated votes in a three-ranked median system such as [[MCA]], [[Bucklin]], or [[Majority Judgment]]. However, this extra complication would matter so rarely that it is not worth it.
 
==== Simpler, more forgiving handling of write-in candidates ====
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