[EM] notes on criteria

[Kevin Venzke]

>Of the methods proposed on EM, Approval and CR are the ones that meet 
>Participation.

Also, Borda and Woodall's descending coalition methods have been at least 
discussed here.

>Does IRV meet anything? It meets the Clone Criterion and Mutual Majority. 
>Those are its advantages over Approval.

IRV meets Mono-add-top, meaning that adding new ballots with A as the
first preference can't make A lose.  It seems a method meeting Schwartz
and Mono-add-top hasn't been discovered yet.

Later-no-harm is technically an advantage over Approval, one that gets
brought up quite a bit.

Kevin Venzke
stepjak at yahoo.fr


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