[EM] Simple monotonicity question

[Chris Benham]

Kristofer Munsterhjelm  wrote:

"Does nonmonotonicity in three-candidate IRV only happen when the 
Condorcet winner is eliminated?"
 
No.

47: A>C>B
26: B>A
02: C>A>B
25: C>B
 
There is no Condorcet winner. 
 
IRV elects A but if the two C>A>B ballots are changed to A>C>B then
there is still no Condorcet winner and now IRV elects B, a failure of
mono-raise.
 
49: A>C>B
26: B>A
25: C>B

 
Chris Benham


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