[EM] I need an example of Condorcet method being subjected

Terry Bouricius terryb at burlingtontelecom.net
Fri Jan 22 10:30:08 PST 2010


Jonathan,

Yes and no...You are correct that Arrow never uses the term 
"monotonicity," but the concept is embodied in his second condition, 
called "positive association."

Terry

----- Original Message ----- 
From: "Jonathan Lundell" <jlundell at pobox.com>
To: <kathy.dopp at gmail.com>
Cc: <election-methods at lists.electorama.com>
Sent: Friday, January 22, 2010 12:47 PM
Subject: Re: [EM] I need an example of Condorcet method being subjected


On Jan 22, 2010, at 5:32 AM, Kathy Dopp wrote:

> This reminds me of one of the plethora of other deliberately
> misleading claims of Fairytale Vote, they constantly cite Arrow's
> theorem as if that is a logical reason to support IRV when IRV fails
> more of Arrow's Fairness criteria than even plurality voting does
> because IRV fails the nonmonotoncity criteria in addition to the
> spoiler criteria described above which both IRV and plurality fail.

> Arrow, Kenneth J. (1951). Social Choice and Individual Values. Wiley,
> New York. ISBN 0-300-01364-7.  2nd ed. 1963

Monotonicity, btw, doesn't appear as a criterion in Arrow's monograph on 
his Possibility Theorem, either.
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