[EM] An example of BTR-STV

Rob LeGrand honky1998 at yahoo.com
Thu Jun 8 15:10:47 PDT 2006

Anthony O'Neal wrote:
> STV elects Andrea, Carter, and Deliliah.  CPO-STV elects Andrea,
> Carter, and Scott.
> Now let's compute the score for BTR-STV:

I should point out that I proposed BTR-IRV as a slightly hacked IRV that
would never eliminate a Condorcet winner, in the hope that IRV supporters
might be more likely to support it than Approval or a more direct
Condorcet method.  I meant it only as a single-winner method and I don't
recommend that it be generalized for the multiwinner case.  For example,
if the votes are


and two winners are to be elected, I think {A, C} is a better winner set
than {A, B} even though B is the Condorcet winner.

(I didn't suggest a name for the method when I proposed it, but it has
been called the "orphan" method, LeGrand IRV and BTR-IRV.)

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

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