[EM] 3 or more choices - Condorcet

[Kevin Venzke]

Hi Chris,


> De : Chris Benham <cbenhamau at yahoo.com.au>
>
>Say there are 3 candidates and the voters have the option to fully rank them,
>but instead they all just choose to vote FPP-style thus:
> 
>49: A
>48: B
>03: C
> 
>Of course the only possible winner is A. Now say the election is held again (with
>the same voters and candidates), and the B voters change to B>C giving:
>
>49: A
>48: B>C
>03: C
>
>Now to my mind this change adds strength to no candidate other than C, so the winner 
>should either stay the same or change to C. Does anyone disagree?

I'm tempted to. I'm not sure Later-no-help is inherently valuable. But even
if it is, many methods sacrifice it to accomplish something else.

Margins, it seems to me, is DOA as a proposal due to the Plurality criterion.
That 35 A>B, 25 B, 40 C would elect A is too counter-intuitive.
Kevin