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, <> 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 (?).
>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

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 M. Keller, Ph.D., 3881 Corina Way, Palo Alto, CA  94303-4507
tel +1(650)424-0202, fax +1(650)424-0424
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Received on Sat Apr 30 23:17:02 2005

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