On Aug 10, 2008, at 7:13 , Kathy Dopp wrote:
All election methods have vulnerabilities. These monotonicity
failures may look bad on paper but in real life elections they are
typically not that harmful. If some IRV voter asks if he should vote
sincerely or falsify his vote somehow due to the non-monotonic
properties the general recommendation is anyway to vote sincerely. It
is not easy to use the monotonicity failures to intentionally
improve/
falsify the results (in typical large public elections).
"not easy"?! I'd say it is impossible since most voters I know do not
read minds of all the other voters or know how all the other voters
voted prior to casting a ballot. However, I suppose if one were an
insider who is manipulating the election results after the election,
it would be possible - so OK, it is possible.
Hey, maybe I'm just wierd or something, but I prefer knowing whether
or not I should rank a candidate first, middle or last to help that
candidate win when I go to the polls.
If in doubt I'd recommend also in IRV to rank the first ones first.
It is much more probable that doing so will contribute positively to
the end result rather than contribute negatively.
Are you *sure* I haven't fallen down the rabbit hole?
In the world of election methods there are indeed many strange rabbit
holes. One must just check them all to see which ones are just
harmless paradoxes, which ones are nasty but with no crucial impact,
and which ones make the methods unusable.
Juho
Cheers,
Kathy
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