[EM] Burlington VT reconsidering IRV 10 years after IRV failed to elect the Condorcet Winner

[VoteFair]

On 12/4/2019 7:26 PM, robert bristow-johnson wrote:
 >> On December 4, 2019 9:50 PM Juho Laatu <juho.laatu at gmail.com> wrote:
 >> ... In each round, if one of the continuing candidates is preferred 
[in the ranked ballots] over any other continuing candidate [more often 
than the other way around] [, when that candidate is compared to every 
other continuing candidate one by one], then that candidate will be 
elected. ...

One way to simplify the wording when pairwise counting is involved -- as 
it is here -- is to refer to "more than half the ballots."

Accordingly, here is an alternate wording for the above sentence:

In each round, if there is a not-yet-eliminated candidate who is ranked 
higher on more than half the ballots when that candidate is compared to 
each and every one of the other not-yet-eliminated candidates on a 
pairwise (one-on-one) basis, then that pairwise-winning candidate shall 
be elected.

I'll again repeat my point that the wordings being proposed do not 
specify what to do with ballots that rank more than one candidate at the 
same preference level. If voting will be done electronically then this 
issue will only affect the few ballots submitted by mail (such as from 
people overseas in military service), but otherwise this gap will allow 
many, many ballots to be discarded as "spoiled" even though they are 
marked in a reasonable way.

Again, good luck getting at least some improvements.

Richard Fobes

On 12/4/2019 7:26 PM, robert bristow-johnson wrote:
>
>
>> On December 4, 2019 9:50 PM Juho Laatu <juho.laatu at gmail.com> wrote:
>>
>> (3) If no candidate receives a majority of first preferences, an instant runoff re-tabulation shall be performed by the presiding election officer. The instant runoff re-tabulation shall be conducted in rounds. In each round, if one of the continuing candidates is preferred [in the ranked ballots] over any other continuing candidate [more often than the other way around] [, when that candidate is compared to every other continuing candidate one by one], then that candidate will be elected. If there is no such candidate, each voter’s ballot shall count as a single vote for whichever continuing candidate the voter has ranked highest, and the candidate with the fewest votes shall be eliminated.
>>
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> The language in the brackets "more often than the other way around" needs to be different.
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> Juho, if you could take the following original and graft your (3) into it, that makes it something to compare to.
>
> Here is their (non-Condorcet RCV) original:
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> ________________________________________________________
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> NOW, THEREFORE, BE IT RESOLVED that, for the purpose of placing a charter change question on the March 3, 2020 town meeting election ballot, the City Council hereby refers the following question amending City Charter § 5 to its Charter Change Committee for review and recommendation to the full City Council by its December 16, 2019 meeting, in order to reintroduce ranked choice voting for the election of the City’s mayor, city councilors, and school commissioners:
>
> § 5 Election to be by ballot; method of election:
>
> All elections of mayor, city councilors and school commissioners shall be by ballot, using a system of ranked choice voting without a separate runoff election. The chief administrative officer shall implement a
> ranked choice voting protocol according to these guidelines:
>   (1) The ballot shall give voters the option of ranking candidates in order of preference.
>   (2) If a candidate receives a majority (over 50 percent) of first preferences, that candidate is elected.
>   (3) If no candidate receives a majority of first preferences, an instant runoff retabulation shall be performed by the presiding election officer. The instant runoff retabulation shall be conducted in rounds. In each round, each voter’s ballot shall count as a single vote for whichever continuing candidate the voter has ranked highest. The candidate with the fewest votes after each round shall be eliminated until only two candidates remain, with the candidate then receiving the greatest number of votes being elected.
>   (4) The city council may adopt additional regulations consistent with this subsection to implement these standards.
> ________________________________________________________
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>
> Here is my latest BTR-STV stab at it:
>
> ________________________________________________________
>
> NOW, THEREFORE, BE IT RESOLVED that, for the purpose of placing a charter change question on the March 3, 2020 town meeting election ballot, the City Council hereby refers the following question amending City Charter § 5 to its Charter Change Committee for review and recommendation to the full City Council by its December 16, 2019 meeting, in order to reintroduce ranked choice voting for the election of the City’s mayor, city councilors, and school commissioners:
>
> § 5 Election to be by ballot; method of election:
>
> All elections of mayor, city councilors and school commissioners shall be by ballot, using a system of ranked choice voting without a separate runoff election. The chief administrative officer shall implement a ranked choice voting protocol according to these guidelines:
>   (1) The ballot shall give voters the option of ranking candidates in order of preference.
>   (2) If a candidate receives a majority (over 50 percent) of first preferences, that candidate is elected.
>   (3) If no candidate receives a majority of first preferences, an instant runoff retabulation shall be performed by the presiding election officer. The instant runoff retabulation shall be conducted in sequential rounds. A "remaining candidate" is defined as a candidate that has not been eliminated in any previous round. Initially, no candidate is eliminated and all candidates begin as remaining candidates.
>   (4) In each round, each voter’s ballot shall count as a single vote for whichever remaining candidate the voter has ranked highest. The two candidates with the fewest votes in a round, herein designated as "A" and "B", shall be compared in a runoff in which the candidate, A or B, with lesser voter support is eliminated in the current round. If the number of ballots having A ranked higher than B exceeds the number of ballots having B ranked higher than A, then B has lesser voter support, B is eliminated, and A remains for the following round. Likewise, if the number of ballots having B ranked higher than A exceeds the number of ballots having A ranked higher than B, then A has lesser voter support, A is eliminated, and B remains for the following round. In the case that the aforementioned measure of voter support between A and B is tied, then the candidate with fewest votes is eliminated in the current round.
>   (5) This runoff retabulation, eliminating one candidate each round, is repeated until only two candidates remain, with the candidate then receiving the greatest number of votes being elected.
>   (6) The city council may adopt additional regulations consistent with this subsection to implement these standards.
> ________________________________________________________
>
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> r b-j rbj at audioimagination.com
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> "Imagination is more important than knowledge."
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