On Sep 23, 2008, at 9:04 AM, Kathy Dopp wrote:
Thanks for the info. Jonathan.
Do you or does anyone know if this muti-seat IRV method that splits
votes of voters to their second choice candidates after some winning
candidates receive the threshold amount of votes, exhibits
non-monotonicity or not like the normal IRV method does? If so, is
there an example posted somewhere?
STV is not monotonic.
There's a lot of literature on the subject.
http://www.cs.duke.edu/courses/fall06/cps296.2/stv_hard.pdf
http://www.math.nus.edu.sg/aslaksen/voting.html
<http://www.votingmatters.org.uk/> has a lot of material on STV.
Terry Bouricius posted a pretty reasonable defense of IRV's non-
monotonicity: http://fairvote.org/monotonicity/
Thanks.
Kathy
On Mon, Sep 22, 2008 at 7:35 PM, Jonathan Lundell
<[EMAIL PROTECTED]> wrote:
On Sep 22, 2008, at 4:33 PM, Kathy Dopp wrote:
Does anyone know of another election scheme that allows for the
split
of a vote into fractions? Do other jurisdictions with IRV use
fractions to transfer surplus votes over a threshold amount, other
than Minneapolis?
Scotland, among others.
Though we typically don't call multi-seat STV "IRV".
--
Kathy Dopp
The material expressed herein is the informed product of the author
Kathy Dopp's fact-finding and investigative efforts. Dopp is a
Mathematician, Expert in election audit mathematics and procedures; in
exit poll discrepancy analysis; and can be reached at
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