COWPEA Lottery

From Electowiki
Revision as of 18:29, 19 October 2021 by Toby (talk | contribs) (Created page with "'''COWPEA Lottery''' is a method of proportional representation that uses approval voting, which uses the lottery from COWPEA (Candidates Optimally Weighted in Pro...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
COWPEA Lottery is a method of proportional representation that uses approval voting, which uses the lottery from COWPEA (Candidates Optimally Weighted in Proportional Election using Approval voting) to elect candidates individually in a sequential manner, rather than give them weighted power within a parliament as in COWPEA. The following lottery is done k times to elect k candidates:
Pick a ballot at random and list the so-far-unelected candidates approved on this ballot. Pick another ballot at random, and strike off from the list all candidates not also approved on this ballot. Continue until one candidate is left and elect this candidate. If the number of candidates goes from >1 to 0 in one go, ignore that ballot and continue. If any tie cannot be broken, then elect the tied candidates with equal probability.