On Aug 10, 2008, at 12:43 , Kristofer Munsterhjelm wrote:
There's also the "it smells fishy" that nonmonotonicity - of any
kind or frequency - evokes. I think that's stronger for
nonmonotonicity than for things like strategy vulnerability because
it's an error that appears in the method itself, rather than in the
move-countermove "game" brought on by strategy, and thus one thinks
"if it errs in that way, what more fundamental errors may be in
there that I don't know of?". But that enters the realm of feelings
and opinion.
I think it would be a good practice to evaluate both the performance
of a method with sincere votes and the performance when voters may be
strategic.
IRV is quite good with strategies and less good with performance with
sincere votes.
Of course different elections may have different requirements with
respect to what kind of winners are good winners. This influences
evaluation of the sincere votes part.
Juho
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