Wikimedia explicit approval elections
Wikimedia and Wikipedia elections are held using a voting system equivalent to Explicit approval voting, in which voters must choose Support, Oppose, or Neutral for every candidate. The winner is the candidate with the highest support percentage: the highest proportion of Support votes out of combined Support and Oppose votes = S/(S+O).
Approval voting is generally equivalent to 2-level Score voting (where the levels are "0" and "1"). Wikimedia's variant is equivalent to 2-level Score voting where voters may explicitly abstain, and the default choice is to abstain. The levels in Wikimedia's system imply (−1, +1) rather than (0, 1), so they may be affected by the psychological consequences of disapproval voting.
Results[edit | edit source]
Wikipedia uses this in a non-binding way for Administrator nominations, etc.
If tallied using normal Score voting rules (where O=0, N=1, S=2), the 2015 Wikimedia Board election would have had a different winner, with the candidate in 4th place moving up to 2nd. The 2017 Board and 2015 FDC elections would have had a different top-3 order, but the same 3 candidates would have won.
In all 8 elections from 2013-2017, the most common vote was Neutral, which was cast about twice as often as Support, which in turn was cast about twice as often as Oppose. Winners typically receive 70–85% support.