[EM] Majority winner set

[Bart Ingles]

MIKE OSSIPOFF wrote:
> >Arrow presumes that every voter always casts his complete opinion of
> >the candidates on the ballot. He calls this presumption "Unrestricted
> >Domain Criterion." This criterion says that the election method must
> >not restrict the opinion that a given voter can cast.
> 
> That's odd, because in the versions that I've heard of, Arrow
> stipulates rank balloting, not ratings balloting.


Ranking or social ordering is by no means a voter's complete opinion,
even when derived from sincere utilities.  How would you like your bank
statement to read "you have less money than you had in March, but more
than you had in October" -- even if the statement was completely
accurate?

Bart