Re: RE: News re preference voting or IRV

From: Arthur Keller <voting_at_kellers_dot_org>
Date: Wed Apr 06 2005 - 06:00:51 CDT

At 4:42 PM -0700 4/5/05, Alan Dechert wrote:
>On Apr 5, 2005 5:21 AM, dr-jekyll@att.net <dr-jekyll@att.net> wrote:
>>
>> I may be the only person in America who currently advocates this, but has
>> anyone assessed the idea of positive and negative (aka Pro and Con) voting?
>> That would be to allow each vote to be either a positive vote for a
>> candidate or a negative vote against one of the candidates. In order to win
>> one must achieve a positive total.
>>
>This seems to amount to same as some "none of the above" (NOTA) Some
>people have sought to attach some action to a "none of the above"
>choice on the ballot. If "none of the above" wins, new candidates are
>required (or maybe there's a re-vote where some of the same candidates
>can participate (?).
>
>See http://www.nota.org/
>
>Needless to say, politicians don't seem to like the idea.
>
>Alan D.

Actually, none of the above is qualitatively different.

Let's suppose 3 candidates are running, A, B, and C. Suppose A and B
are big-endians and C is a little-endian. Suppose most people are
big-endians, but they split between A and B. Consider these
scenarios.

Vote for one, winner take all: C 40%, B 30%, A 25%, abstain 5%. C wins.

None of the above: C 40%, B 30%, A 25%, NOTA 5%. C wins.

Approval voting: C 40%, B 75%, A 70%. B wins.

Pro/con voting: C 40%+/75%-, B 75%+/40%-, C 70%+/40%-. B wins.

I'd like to see a realistic scenario where approval voting results in
a different answer than pro/con voting.

In my opinion:
Approval voting encourages candidates to appeal to the broadest
audience. IRV encourages candidates to appeal to the voters favoring
losing candidates.

Best regards,
Arthur

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Received on Sat Apr 30 23:17:02 2005

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