Democratic symmetry (fwd)
DEMOREP1 at aol.com
DEMOREP1 at aol.com
Tue Mar 14 15:21:43 PST 2000
With N choices there are N factorial (!) combinations.
N N !
2 2
3 6
4 24
5 120
etc. etc.
With truncated (short) votes there are additional combinations.
I would suggest that what Prof. Saari finds interesting with the 3 choice
case (with a mere 6 full vote choices -- i.e. 2 symmetry sets for each first
choice-- such as N1 BCA and N2 BAC -- to be paired with their respective
symmetry combinations --- N1 CAB, N1 ABC or N2 ACB, N2 CBA) becomes more than
a little complex with 4 or more choices.
Even the 3 choice case is rather complex (different N's).
N1 ABC
N2 BCA
N3 CAB
N4 CBA
N5 BAC
N6 ACB
Prof Saari would apparently choose the least amount in the N1-N3 group and
the least amount in the N4-N6 group to cancel out.
Examples- N3 is the smallest of N1 to N3, N5 is the smallest of N4 to N6--
leaving--
N1-N3 ABC
N2-N3 BCA
N4-N5 CBA
N6-N5 ACB
Anybody want to do the resulting Borda-Saari math ?
Very interesting ---
removing the N3 votes removes a total of 3 x N3 votes
removing the N5 votes removes a total of 3 x N5 votes
This is rather blatant vote stealing.
With 4 or more choices, how many votes would be stolen ?
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