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I think the problem (at least theoretically) is that second-choice votes are not weighted. It could've been e.g. 1 for first choice, 0.5 for second and so on. B

by mojuba 10y ago

I think the problem (at least theoretically) is that second-choice votes are not weighted. It could've been e.g. 1 for first choice, 0.5 for second and so on. Because obviously your second choice candidate is not as good to you as the first one, but some not-so-good candidates can get more votes. In fact I can even see some potential patterns for manipulation here.

matthewmacleod 10y ago
That isn't a problem; the impact of your vote is inherent in the ranking, so lower preferences are automatically "worth less" than higher ones. I don't see a particular pattern that would allow for manipulation. AFAIK it's fairly resistant to tactical voting and manipulation by withdrawal.
- mojuba 10y ago
  Is it so in case of Maine though?
- ClayShentrup 10y ago
  Ludicrous. http://scorevoting.net/TarrIrv.html http://scorevoting.net/TarrIrv.html And irrelevant, since IRV performs worse with 100% honest voters than Score or Approval with 100% strategic.