One Approval step determines the winner W after the IRV winner X has been found: The IRV winner X is the approval cutoff on all ballots ... inclusive only on the ballots whose transferred vote went to X on the final IRV round.

It is an interesting idea but I think it would be more fair if it were like: IRV winner X, approval winner Y where X is (exclusive) cutoff on all ballots, then pairwise of X and Y wins Otherwise, what if the final round of IRV is X and Z, but my preferences happen to be Z > X > (everything else), seems like my vote would be mostly ignored. On Wed, Jun 15, 2022 at 10:22 PM Forest Simmons <forest.simmons21@gmail.com> wrote: > One Approval step determines the winner W after the IRV winner X has been > found: > > The IRV winner X is the approval cutoff on all ballots ... inclusive only > on the ballots whose transferred vote went to X on the final IRV round. > > ---- > Election-Methods mailing list - see https://electorama.com/em for list > info >

With Forest's idea, the sense seems to be that the IRV winner can win as long as that is somewhat reasonable. I.e. that there isn't some eliminated candidate who can defeat all the final-round support for the IRV winner. If the IRV winner will be considered below all cutoffs, it looks like we want the IRV winner to be defeated if at all possible. That doesn't sound good from a monotonicity standpoint. That said, I'm not seeing how the two rules give a different treatment of the "Z>X>..." ballot in that scenario, where X was the IRV winner and Z was the other finalist. Kevin Le mercredi 15 juin 2022, 21:34:38 UTC−5, Andy Dienes <andydienes@gmail.com> a écrit : > It is an interesting idea but I think it would be more fair if it were like: >  > IRV winner X, approval winner Y where X is (exclusive) cutoff on all ballots, then > pairwise of X and Y wins >  > Otherwise, what if the final round of IRV is X and Z, but my preferences happen to be > Z > X > (everything else), seems like my vote would be mostly ignored. >  > On Wed, Jun 15, 2022 at 10:22 PM Forest Simmons <forest.simmons21@gmail.com> wrote: > > One Approval step determines the winner W after the IRV winner X has been found: > > > > The IRV winner X is the approval cutoff on all ballots ... inclusive only on the > > ballots whose transferred vote went to X on the final IRV round.