Re:What Is Voter Satisfaction Efficiency?
by godelski on Wednesday June 23, 2021 @06:20PM
(#27611274)
1) Arrow's theorem isn't really about voting though. 2) Arrow's doesn't apply to cardinal systems. 3) Arrow said that for voting cardinal systems were probably superior.
From wiki
> Arrow originally rejected cardinal utility as a meaningful tool for expressing social welfare, and so focused his theorem on preference rankings, but later stated that a cardinal score system with three or four classes "is probably the best".
Again note that he's talking about social welfare and not voting.
From wiki
> Arrow originally rejected cardinal utility as a meaningful tool for expressing social welfare, and so focused his theorem on preference rankings, but later stated that a cardinal score system with three or four classes "is probably the best".
Again note that he's talking about social welfare and not voting.