[EM] 3 or more choices - Condorcet

[Jameson Quinn]

>
>
> maybe, once in a blue moon, there will be a cycle involving Candidates
> Rock, Paper, and Scissors, and then Ranked-Pairs, which is simple, will do
> just as well as Schulze.


I'd like to point out that contemporary research is tending to agree that
Condorcet top-cycles, especially ones larger than 3, are much rarer than
previously imagined; and that the common "impartial culture" model
radically exaggerates their probability. Read Regenwetter's work, for
instance Regenwetter, Michel, Bernard Grofman, Anna Popova, William
Messner, Clintin P. Davis-Stober, and Daniel R. Cavagnaro. “Behavioural
Social Choice: a Status Report.” *Philosophical Transactions of the Royal
Society B: Biological Sciences* 364, no. 1518 (March 27, 2009): 833–843.

Jameson
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