[EM] Re: Approval STV

Kevin Venzke stepjak at yahoo.fr
Sun Apr 4 20:31:04 PDT 2004


 --- Chris Benham <chrisbenham at bigpond.com> a écrit : 
> Kevin,
> You  wrote  (Wed.Mar.31):
> >A method I would rank between Condorcet and Approval is AER, or "Approval STV."
> >It's IRV, but the elimination order is based on approval.  Because the approval
> >counts don't change, and the elimination order is thus fixed from the beginning,
> >it's monotonic.  It's intuitive, and gives similar results to WV methods.
> >
> To avoid the need for  approval cutoffs, why not use the  plain 
>  Weighted Mean Approval scores to set the 
> fixed elimination schedule, and then the rest is like fractional  IRV 
> with a majority stopping rule ?

I don't think this would do it.  As I tried to explain in my subsequent message
to Forest, it's not enough to fix the order from the beginning.  The method used
to fix the order has to have the property that raising a candidate can't alter
the method's ordering of the other candidates.

Kevin Venzke
stepjak at yahoo.fr


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