[EM] IRV & Spoiler Effect

Eric Gorr eric at ericgorr.net
Wed May 12 06:12:01 PDT 2004


Just spotted this comment on the wikipedia and wanted see what others 
might say about this...


Talk:Spoiler effect  http://tinyurl.com/2wj3l
IRV isn't free from the spoiler effect at all. In order to be "free" 
from the spoiler effect, it would have to be free from Independence 
from Irrelevant Alternatives Criterion (IIAC). It's not. It's not 
even compliant with relaxed versions of IIAC, such as Local IIAC. --- 
RobLa 03:51, 12 May 2004 (UTC)


If this is true, no ranked ballot method can be free from the spoiler 
effect, but do we not generally claim that the better Condorcet 
methods are spoiler free?




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