[ER] The Davison Run-off

[Steve Eppley]

Marsha Pripstein wrote:
>please correct me if I'm wrong, but I don't see how this could
>work.  IRO does not require that every voter rank every candidate,
>so so might only go 1-2-3, while others would go 1...5, etc.  so
>how do you decide on who gets the most "last place/last selection"
>votes? 

Donald's draft version of Davison Runoff splits its "anti-vote" among 
the candidates who are equally ranked last.  Any candidates omitted 
from the ballot are treated as if they are ranked last.  So it could 
work, and perhaps not as poorly as IRO.

It's unclear to me, though, why it would be better than giving each 
of the last-ranked a *full* vote against instead of splitting the 
vote.

I have additional comments in another EM message.

---Steve     (Steve Eppley    seppley at alumni.caltech.edu)