RE: [EM] Tim Hull's PR method
Warren Smith wds at math.temple.edu
> > 1. Voters vote for up to n candidates - n being either # of open seats or
> > # of candidates
> > 2. Each voter has one vote equally and evenly divided among the candidates
> > they voted for.
> > 3. After doing the first count, eliminate the candidate with the fewest
> > votes.
> > 4. Recount all ballots, dividing votes equally and evenly among *remaining
> > candidates only*
> > 5. Repeat Steps 3 and 4 until there are only as many candidates remaining
> > as there are open seats.
> > 6. The remaining candidates shall be declared elected.
> >
> > Any comments on this method?
> --
>
> WDS: it seems to me this method is not PR in the sense that voters who vote
> for single candidate risk having their votes wiped out, and this other
> problem:
>
> EXAMPLE:
> there are 10 Dems & 10 Repubs running for 10 seats.
> The voters are 51% Dem and 49% Repub.
> Each Repub voter votes for all 10
> Repubs (who thus initially each get 0.1 vote).
> Each Dem voter voters 100% for just one Dem - Bill Clinton. Really
> the Dem voters feel
> Clinton > all other Dems > all Repubs,
> but this voting scheme does not allow them to express that feeling, so they
> give it all to Clinton.
>
> Result: 9 Dems eliminated, then 1 repub eliminated, then
> the 10 winners are Clinton + 9 repubs.
>
> The problem here is that the Dem voters are "pickier" than the Repub voters.
> A lot of PR-design-attempts run onto this kind of reef.
I think it has the same problems as PR-STV where surpluses are not
transferred. A
voter wastes the excess of his vote if he votes for someone who is elected.
<next post>
> Well, actually, Hull's method *is* PR in the sense that if voters are
> assumed to
> vote for candidates of their "color" only, and for all of them -
> then winner-counts end up proportional.
>
> That's nice. It's kind of a PR generalization of "approval voting."
It is similar to PR-STV with equal rankings, except that only 2 ranks are
allowed and
there are no surplus transfers, only eliminations. (So maybe not so similar :)
).
In PR-STV with equal rankings allowed, is it normal to re-calculate the
fraction when
a candidate is eliminated (or elected)?
Raphfrk
--------------------
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www.wikocracy.com
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