ideas-groupDecisionMaking-fluidDemocracy-bylaws-reweightedRangeVoting

Reweighted Range Voting procedure

Each voter submits a ballot which, for each candidate, may indicate one of four choices: Like (+2), Neutral (+1), Dislike (0), or No opinion. The first three choices correspond to numerical scores, but No opinion is treated specially.

Each ballot is given an initial "weight" of 1.

Repeat the following P times, where P is the number of winners to be chosen: 1. For each candidate, the weighted count of the number of ballots that voted Like or Neutral is calculated. The result is called the candidate's "support". The support will be used to make sure that candidates that "no one has heard of" can't win.

2. For each candidate, the weighted average of their scores is calculated, leaving out those ballots which marked "No opinion" for that candidate. The result is called the candidate's "average score".

3. The candidate with the highest average score, out of those whose support is at least half of the support of the candidate with the greatest support (not including other previous winners), is declared a winner.

4. When a voter "gets her way" in the sense that a candidate she rated highly wins, her ballot weight is reduced so that she has less influence on later choices of winners. To accomplish that, each ballot is given a new weight = 1/(1+SUM/2), where SUM is the sum of the scores that ballot gives to the winners-so-far, with "no opinion" treated as 0.

Note: If P=1, this yields the same result as [1].