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I still maintain one of the best voting systems has you vote successively for a majority winner. - Many candidates run - If someone has a majority (more than 5

I still maintain one of the best voting systems has you vote successively for a majority winner. - Many candidates run - If someone has a majority (more than 50% of vote), that person wins - Otherwise, top x number of candidates move on to next round - repeat This way, changes in availability are addressed, so people can make fair choices between one item and the next.

antognini 10y ago
That would basically be instant runoff voting. The main issue with that is that in a polarized election you can have a moderate compromise option eliminated early. For example, suppose the election is between a far-left, moderate, and far-right candidate. 40% prefer the far-left candidate, 20% prefer the moderate candidate, and 40% prefer the far-right candidate. In this case 60% of the population prefers the moderate candidate to the far-right candidate, and 60% prefer the moderate candidate to the far-left candidate and so the moderate candidate should win the election. But in an IRV-type system, the moderate candidate gets eliminated immediately and the election is then between the extreme candidates.