[EM] Borda- Young example
DEMOREP1 at aol.com
DEMOREP1 at aol.com
Mon Apr 26 21:51:31 PDT 1999
"Condorcet's Theory of Voting" by H.P. Young (82 American Political Science
Review 1231 (1988) has the following Borda example by Prof. Young--
Table 5 A Voting Matrix of Six Alternatives and 100 Voters
a b c d e f Borda Scores
a -- 51 54 58 60 62 285
b 49 -- 68 56 51 58 283
c 46 32 -- 70 66 75 289
d 42 44 30 -- 41 64 221
e 40 48 34 59 -- 34 215
f 38 42 25 36 66 -- 207
a, b and c each beat d, e and f
Borda produces cabdef.
If only a,b,c were the choices (the upper left part of the matrix) then the
Borda result would be b 117, a 105, c 78 or bac (the opposite of the first
Borda count).
Prof. Young says in effect that introducing inferior alternatives may/can
manipulate the Borda choices among the superior alternatives.
Choice a is the Condorcet winner (beats each alternative head to head).
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