[Foundation-l] elections

Christopher Hagar cmhagar at gmail.com
Sun Apr 8 05:02:11 UTC 2007

http://en.wikipedia.org/wiki/Monotonicity_criterion#Example has a good
example of this particular problem. You can find an egregious example of
another kind of failure at http://rangevoting.org/rangeVirv.html#nasty

People like instant runoff voting because it is an election method that
seems like it has the advantages natural to ranked ballots that is easy to
explain and understand, but it is almost the worst method. Note that these
are not problems with ranked ballots in general, but with the method used to
analyze the ballot.

On 4/7/07, Mark Ryan <ultrablue at gmail.com> wrote:
> On 08/04/07, Christopher Hagar <cmhagar at gmail.com> wrote:
> > Instant run-off voting is a bad idea and fails some basic requirements
> for a
> > good voting system. For example, you can have situations where: if you
> rank
> > a candidate _higher_ on your ballot, he will actually do _worse_ in the
> > election than if you had ranked him lower.
> Could you give an example of a situation where that would occur?
> _______________________________________________
> foundation-l mailing list
> foundation-l at lists.wikimedia.org
> http://lists.wikimedia.org/mailman/listinfo/foundation-l

More information about the foundation-l mailing list