[EM] possible improved IRV method

Rob LeGrand honky1998 at yahoo.com
Tue Jun 27 09:43:37 PDT 2006

Allen Pulsifer wrote:

> I have a thought on a possibly improved IRV method that I would like to
> run by the list.

I believe the method you describe is essentially the same as one I called
Double IRV in the following posts:


I don't make it clear how to handle tied ranks, but your fractional
solution seems the most natural.  Are they the same or did I miss a
substantial difference?

> This method of elimination would seem to pass the Condorcet criteria,
> because in order to be eliminated, a candidate would have to lose a
> pair-wise contest against all remaining candidates.

Well, it is a Condorcet method because a candidate would have to lose a
pairwise contest against *some* remaining candidate, so a voted Condorcet
winner could never be eliminated.

Double IRV and BTR-IRV were two IRV-like methods I thought might be
salable to IRV advocates as worthy of their support.

Rob LeGrand, psephologist
rob at approvalvoting.org
Citizens for Approval Voting

Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 

More information about the Election-Methods mailing list