[EM] Challenge - give an example where FBC is violated for Condorcet methods

Kevin Venzke stepjak at yahoo.fr
Mon Jun 6 18:32:45 PDT 2011


Hi Jameson,

--- En date de : Lun 6.6.11, Jameson Quinn <jameson.quinn at gmail.com> a écrit :
Since I believe that cases where there is a sincere CW are both more common and more important to get right (because when there's a cycle, there are many arguably-right answers), I therefore would argue that violations of the FBC are less-important than violations of burial/truncation. Your mileage may vary.
[end quote]

Well, I wouldn't want a reader to think that I demonstrated a huge 
problem with FB incentive in WV. In my sims of the day WV was almost 
perfect. There was doubt as to whether WV with three candidates had to
have FBC failures at all. If someone rejects WV over FB incentive then
they must be going with a method that is fully FBC-compliant.

Actually, I was wondering lately whether I could improve on WV's low
compromise incentive. The really angry voters in WV are the ones who
evidently had another way they could have voted to avert a spoiled
election. So I had the thought, why don't we directly measure that? The
resulting method tested a bit worse than WV though, I suppose because
voters now had an incentive to make themselves look anger-able even if
they shouldn't have been.

Kevin Venzke




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