On Mon, Jun 24, 2013 at 11:08 AM, Stephen Unger <[email protected]>wrote:
> Regarding the plurality criterion: > > The Plurality Criterion is: "If there are two candidates X and Y so > that X has more first place votes than Y has any place votes, then Y > shouldn't win". > > It is NOT worthy of respect. > Consider the following 2-candidate SV election. > > #votes C1 C2 > 51 9 8 > 49 0 9 > > C1 should win according to the Plurality Criterion, but obviously C2 > is the people's choice. One of the advantages of SV is that it > properly handles cases like this. > > Steve > OK, SV=Score Voting, right? Score voting doesn't have places, does it, as it is not a ranked based system? I agree with you that in the above election C2 should win, of course - although some would not. I dunno, maybe I don't under this, or maybe the Plurality is better defined without referring to first place or any place. I guess that's my next question: is the Plurality relevant to non ranked systems? Is the Criterion used by experts (like you guys) to refer to C2 winning about as failing the Plurality Criterion? Or is it only about things like Bucklin and IRV? -Thanks. -Benn Grant
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