Hi Kevin,
You're right. Copeland has some pretty big issues.
It appears to suffer the same deficiencies as margins-based methods,
since Copeland ends up treating a victory of 3%-1% with 96% abstaining
as being just as good as some other candidate's 51%-49% victory with 0%
abstaining.
Below is a
I now see the source of the confusion. It was a simple error; I was
then confused because the error was not noticed, instead it was compounded.
Mr. Venke had posted:
> > > >49 A
> > > >24 B
> > > >27 C>B
And I translated these truncated results to
> > > 49: A>B=C
> > > 24: B>C>A
> > > 27: C>B>
Hi,
I thought about this a bit. Consider this election:
49 A
24 B>E
27 C>D>B>E
C has 3 wins, and is the only Copeland winner.
Woodall's plurality criterion is violated, since there's no way to raise C
in rankings including C so that C has even the first preference count that
A starts with.
C
On Mon, Sep 05, 2005 at 05:55:01PM -0400, Stephane Rouillon wrote:
> Actually as many people will tell you,
> this claim is wrong.
>
> I see that Rob already gave you a counter example.
>
> Maybe you would like to know that using winning vote as
> criteria to make pairwise comparison instead of m
Hello,
There is some general confusion. In your previous message you used margins
to complete truncated rankings. I replied that your completion was not right
according to margins, since your completion changed C>B votes to C>A votes.
However, Copeland doesn't use margins. So in this message below
Hello James,
Few remaining notes. No strong opinions but maybe some fun for
interested readers.
On Sep 10, 2005, at 03:30, James Green-Armytage wrote:
"Approval" and "consent" are synonyms.
"Consensus" may come from Latin (con-sensus) and be related to word
"sense" (=> joint opini
Hi folks,
On the approval vs. IRV question, I used to lean more towards IRV, but
these days I've been leaning more in the other direction. It occurred to
me today that the re-election of George Bush may be partly responsible for
this. First, I don't think that GB should have been re-electe
