Kathy Dopp wrote:
Thanks for the responses. In response to the party leaders having too much control, I believe it is possible to make "party-lists" on the fly from voters' own rank choice ballots in a way that the most voters would naturally support -- which would put the control into voters' hands and treat all voters fairly and the same (unlike IRV and STV). As soon as I have time, I'll write it up.
You could make a party list system that would arrange the list after the election, yes. This would have a ballot where you first pick a party and then order the party's candidates.
However, either the election method used within each party to determine the list orders would be majoritarian (in which case the system isn't proportional beyond the party level), or it would be PR (in which case you could just as easily remove the party constraint and just use the PR method directly).
I suppose a "party list with Condorcet for each party" method would both be summable and inter-party proportional[1]. If the largest party fields n candidates and there are k parties, then you would have an upper bound of k * n^2 numbers, which is polynomial in the summability sense. You would in essence do k "mini-elections", one for each party.
[1] that is, proportional between parties, if not inside each. ---- Election-Methods mailing list - see http://electorama.com/em for list info
