Equally Weighted Vote: Difference between revisions

Otherwise known as the Equality Criterion. Any single-winner voting method or election which passes the Test of Balance passes the [[Equal Vote Criterion]] and can be said to guarantee an [[Equally Weighted Vote]].

One application of the Equally Weighted Vote for the multi-winner or proportional context is [[Vote unitarity|vote unitarity]]. The basic idea is that the vote should stay equally weighted throughout the election tabulation. A voter's influence on electing subsequent winners should directly depend on the amount of support theygiven gave forto prior winners. This means that thean individual voter's vote weight is conserved throughout the process.

There is an important nuance to this with regards to [[Surplus Handling]]; if, say, every voter gives one of the winners a perfecttop score, then instead of everyone's vote having no influence on the other winners, vote[[Vote unitarity|'proportionate triesspending']] ensures a proportionate decrease in voting power, to ensure somethat kindthe ofcost proportionalto decreaseelect ina votingcandidate poweris suchconsistent, and to ensure that every voter still has a the correct amount of influence on the remaining winners. The simplest implementation of this is with [[Sequentially Spent Score]].

In summary, there is a proportionalproportionate relationship between how much support the voters give to the winners, the cost to elect a winner, and the amount of influence that is removed from the voters, to ensure that every voter has a chance to fairly elect someone they prefer. The prominent [[Single transferable vote|Single Transferable Vote]], and [[Reweighted Range Voting]] methods fail vote unitarity.