[EM] Minimally improving Approval

[Gervase Lam]

> Date: Thu, 12 Feb 2004 00:50:55 +0100 (CET)
> From: =?iso-8859-1?q?Kevin=20Venzke?=
> Subject: [EM] Minimally improving Approval

I've been half thinking about this and also one of things that Forest 
sort of mentioned that really it would be nice for MCA to have a moveable 
top slot "quota" instead of the fixed 50%.  The quota would be determined 
by the issue distribution of the population/voters.  One way this could be 
done is to take a leaf out of Weighted Median Approval.

Making just the top slot the approval slot, just get the Approval 
percentage for each of the candidates has then average them.  The 
candidate with the largest percentage that is above the quota is the 
winner.  If there is no candidate who achieves the quota, then the 
candidate with the least number of bottom votes is the winner.

I don't know whether this is a good method or not.  I did think of making 
each of the candidates have their own quota by directly using the Approval 
percentage.  But that is obviously rubbish.

I think this average Approval quota method may have clone problems and is 
not Independent of Irrelevant Alternatives.  But I really mention the 
method in the hope that somebody make changes to improve it or at least 
use it for inspiration.

Thanks,
Gervase.