Clarification-1 of Brief Descriptions of Voting Methods
Bruce Anderson
landerso at ida.org
Mon Jun 3 16:57:57 PDT 1996
Replace:
Let b(i,k) be the number of voters who rank candidate i uniquely in kth place
plus 1/m of the number of voters who rank exactly m-1 other candidate(s) as
being tied with candidate i strictly behind exactly k-h other candidates for
some h from 1 through m. Let n be the total number of candidates. Then Borda
is also equivalent to selecting the candidate(s) with the maximum sum over k of
(n-k)b(i,k).
with:
Let n be the total number of candidates. Let v(i,k,h,m) be the number of voters
who rank candidate i as being tied with exactly m-1 other candidates and being
strictly behind exactly k-h other candidates, for all integral h from 1 through
m, all integral m from 1 through n, and all integral k from 1 through n. Let
b(i,k) be the sum from m=1 through m=n of 1/m times the sum from h=1 through h=m
of v(i,k,h,m). Note that a reasonable definition of Borda's method (with ties
being allowed on voter's ballots) is that Borda selects the candidate(s) with
the maximum sum over k of (n-k)b(i,k).
Bruce
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