Vote unitarity: Difference between revisions

In a 5-winner election, if there is a candidate that 90% of voters maximally support, and that the other 10% of voters don't support, supposing this candidate is the first one elected, with [[D'Hondt method | Thiele reweighting]] as in [[Reweighted score voting | RRV]], the 90% of voters supporting that candidate will have their ballot weight reduced from 100% to 50%, whereas with Vote unitary-based reweighting like [[Sequentially Spent Score]], they'd have their ballot weight reduced to 1-1/(90%*5) = 77%. Note that Thiele's reweighting stays the same no matter how seats are to be filled, whereas Vote unitarity takes this into account. Vote unitarity takes into account the popularity of a candidate when deciding how much ballot weight should be spent.