Ian is correct: using the top K Condorcet winners is a very poor multiwinner election system, if the goal is to have proportional representation.
Having studied this a bit, I would suggest that the best currently available multiwinner election system for our purposes here, i.e., for proportional representation, is Reweighted Range Voting, see http://www.rangevoting.org/RRV.html for details. Advantages: with RRV it is really simple to cast a valid ballot, ballots can be quite expressive, it is easy to explain how to vote, and it is quite simple to calculate the winners. The main disadvantage (cannot do per-district tallying) is not a problem for us. --Barak. _______________________________________________ Spi-general mailing list Spi-general@lists.spi-inc.org http://lists.spi-inc.org/listinfo/spi-general
