Arguably STV multiwinner electiosn are still of interest for single-winner purposes since the FIRST winner is a single-winner IRV winner.
Gilmour is correct (I am happy to now learn) that Ireland is now posting full vote lists in some (all?) STV elections on the www. I grabbed the Dublin country elections each with about 40K voters. It will be interesting to examine them. Incidentally the comment by somebody that non-montonicity spotting in IRV elections is NP-hard, is misleading. That result is only true in an unrealistic limit where both the number of candidates & voters tnd to infinity. If the #candidates is held fixed nd the #voters is made large (more realistic) then the task is fully in polynomial time. MOst of these NP-hardness results in voting theory are almost completely uninteresting for this exact reason. wds ---- election-methods mailing list - see http://electorama.com/em for list info
