[EM] Margins vs. Winning Votes

[Juho Laatu]

Hi All,

Here is another example that addresses exactly the same problem as the 
previous example in this mail stream but gives another viewpoint to it. 
This is an extreme example but it shows nicely the very different 
behaviour of winning votes and margins in this type of ("never mind the 
candidates of other parties except that they are worse than the 
candidates of my own party") voting behaviour.

1000 A>B
1000 C>D

There are now two parties whose supporters rank only their own 
candidates (and leave others into to the default shared last position). 
Winning votes seems to think that all candidates are about equal since 
one additional vote can make any one of the four candidates win (e.g. 
"1 D>B" makes D the winner). Margins seems to think that A and C are 
the strongest candidates since some 500 additional votes are needed to 
make B or D win. Any good explanations to support the winning votes 
philosophy?

Yours,
Juho


(P.S. Number of "1000 supporter parties" could be also higher than two, 
and number of candidates in each party could be higher than two, and 
the results/problems would stay the same.)