Steve Eppley wrote (26 Nov 2009):
Can it be said that Later No Harm (LNH) is satisfied by the variation of
IRV that allows candidates to withdraw from contention after the votes are
cast?
No. Take this classic (on EM) scenario:
49: A
24: B
27: CB
A is the normal IRV winner, but in the variation
Can it be said that Later No Harm (LNH) is satisfied by the variation of
IRV that allows candidates to withdraw from contention after the votes are
cast?
Similar to truly condorcetian methods, Withdrawal//IRV would presumably
tend to elect candidates who take median positions on the issues. That
On Thu, Nov 26, 2009 at 8:52 PM, sepp...@alumni.caltech.edu wrote:
Similar to truly condorcetian methods, Withdrawal//IRV would presumably
tend to elect candidates who take median positions on the issues. That
would create an incentive for candidates who want to win to take median
positions.
sepp...@alumni.caltech.edu wrote:
Can it be said that Later No Harm (LNH) is satisfied by the variation of
IRV that allows candidates to withdraw from contention after the votes are
cast?
I'm not sure. In the wider picture, the candidates would use the ballot
data in order to determine
On Nov 26, 2009, at 12:52 PM, sepp...@alumni.caltech.edu wrote:
Can it be said that Later No Harm (LNH) is satisfied by the variation of
IRV that allows candidates to withdraw from contention after the votes are
cast?
Assuming that the candidates know what the ballots did, then no, it cannot,
sepp...@alumni.caltech.edu wrote:
By the way, if my understanding is correct, IRV is not Single
Transferable Vote (STV), the single-winner voting method used in
Australia Ireland. IRV severely limits the number of candidates each
voter can rank (to 3, if my understanding is correct)
Warren Smith wrote:
Are there any other voting methods besides IRV, meeting the
'later no harm' criterion?
Woodall's Descending Solid Coalitions method does. Minmax(pairwise
opposition) also does, but it has an awful Plurality failure:
1000: A
1:A=C
1:B=C
1000: B
and C wins in
On Nov 25, 2009, at 11:41 AM, Warren Smith wrote:
Are there any other voting methods besides IRV, meeting the
'later no harm' criterion?
Plurality (trivially).
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