[EM] voting system design puzzle

Forest W Simmons fsimmons at pcc.edu
Fri Jan 19 17:29:04 PST 2007

MCA satisfies both conditions (clone free and avoidance of favorite 
betrayal).  It does use range style ballots, but it elects the 
candidate with the greatest median rating. If there are several 
candidates tied for greatest median rating, it elects the one with the 
greatest number of ballots that rate it at that level or above.

ER Bucklin (whole) based on ordinal ballots (with equal ranking 
allowed) also satisfies both conditions.


>From: wds at math.temple.edu (Warren Smith)
>perhaps you whizzes should focus some attention
>on puzzle #5 here
>    http://rangevoting.org/PuzzlePage.html
>it seems tantalizingly nearly within our grasp...
>Warren D Smith

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