About OllPoll

OllPoll is a two-pass score-to-vote proportional representation voting method. The 1st pass works with scores, the 2nd pass assigns votes.

It uses 0-to-N score ballots. Each ballot is worth N votes (or you can think of it as each ballot divides the voter's single vote into N equal pieces).

It works like this:

• 1st pass: sum up the scores, sort the candidates from strongest to weakest
• 2nd pass: for each ballot
  • iterate over the candidates in order from the 1st pass, and mark the ones with strictly increasing scores
  • by how much the score increased for the marked candidate, is the number of votes it gets
  • unmarked candidates get zero votes
• sum up the votes, allocate seats proportionally

For small number of voters (expert committees, juries, assemblies...) use 0-to-5 range ballots. For general elections use 0-to-2 ballots.

OllPoll has these properties.