[EM] Hey guys, look at this...
Kristofer Munsterhjelm
km_elmet at t-online.de
Wed Feb 22 04:40:25 PST 2023
On 2/22/23 04:39, Forest Simmons wrote:
> Why have the STAR folks stubbornly dug in their heels with a clone
> dependent version when one simple change would make it both Condorcet
> efficient and clone-independent?
And for those who like a theoretical challenge, there's still the design
question of making a method that takes von-Neumann-Morgenstern utilities
to their logical conclusion while remaining cloneproof and dealing with
Range's strategy problems.
In a three-candidate election, we don't know if a particular voter's
9/10 is the same as another voter's 9/10. But we can infer lottery
probabilities. So each voter's ballot can be normalized to (1, a, 0) if
we use l_infinity normalization.
So we could do just a normalized Range, but this has undesirable
strategic consequences - the usual Burr dilemma, minmaxing, etc. With
different normalization types (e.g. l_2 cumulative voting) that's
mitigated but at the cost of it no longer being cloneproof (vote-splitting).
I thought that perhaps something with the logic of a Condorcet method
would work better, with, instead of pairwise contests, there would be
pairwise triples: the minimum necessary to capture strength of
preferences. But I just couldn't make it cloneproof.
-km
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