[EM] Borda different than Condorcet?
Alex Small
asmall at physics.ucsb.edu
Mon Feb 24 14:42:00 PST 2003
Adam Tarr said:
>
>>I need a proof that Borda and Condorcet can lead to
>>different winners.
>
> 91: A>B=C=D=E=F=G=H=I=J=K=L
> 9: B>C>D>E>F>G>H>I>J>K>L>A
>
> Condorcet: A defeats B 91 to 9.
> Borda: B defeats A 99 to 91.
That's a dubious way to handle truncation. I'm not aware of any standard
convention for handling truncation in Borda.
If we change all of the = signs to > signs we get
A: 1001
B: 1009
But both examples show the same point: B defeats the first choice of 91%
of the voters.
Alex
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