IFPP and Schulze comments (re [EM] Craig's posts

Markus Schulze markus.schulze at alumni.tu-berlin.de
Wed Sep 12 16:38:10 PDT 2001


Dear Craig,

you wrote (13 Sep 2001):
> Markus wrote (7 Sep 2001):
> > IFPP also violates the participation criterion. If 5 BCA voters hadn't
> > gone to the polls, then C would have been elected. Thus these 5 BCA
> > voters changed the winner from C to A.
>
> Where is the example?

I am talking about Rob's example
(http://groups.yahoo.com/group/election-methods-list/message/8046):

   45:A>B>C
   22:B>C>A
   33:C>B>A

The IFPP winner is A. However, if 5 BCA voters hadn't voted, then this
example would have looked as follows:

   45:A>B>C
   17:B>C>A
   33:C>B>A

Now the IFPP winner is C. Thus, by going to the polls these 5 BCA voters
changed the winner from candidate C to candidate A.

Markus Schulze




More information about the Election-Methods mailing list