[EM] favorite betrayal; and about DMC's history

[Kevin Venzke]

Warren,

--- Warren Smith <wds at math.temple.edu> a écrit :
> Also, concerning the elegant hybrid Condorcet-Approval method DMC.
> Simmons wanted to push it as sort of best of breed.   I am coming to agree with him.
> I had attacked DMC as apparently leading to 2-party domination, while Condorcet(wv, =)
> would not be - but as we see the latter part of that attack is now somewhere
> between questionable & false.

Well, my "improved Condorcet Approval" method does not suffer from favorite
betrayal incentive. Its main shortcoming relative to DMC is that I don't
recommend an explicitly-placed approval cutoff under ICA.

http://wiki.electorama.com/wiki/ICA

> I also had noted Heitzig was pushing DFC not DMC despite being named as DMC's inventor.
> However, Heitzig is denying paternity.

Looking through the EM archives, I find that this is the history of DMC:

Sep 1, 2003: I suggested it as an alternative to Smith//Approval.
http://listserver.dreamhost.com/pipermail/election-methods-electorama.com/2003-September/010799.html

Nov 4, 2004: I suggested it as a rule to be used in conjunction with a method
I came up with to more easily hand-count three-slot ballots.
http://listserver.dreamhost.com/pipermail/election-methods-electorama.com/2004-November/014115.html

Jobst criticized this method because in a three-candidate cycle, the approval
winner is not necessarily the winner. Also, when you rank A>B and approve both,
this can contribute to the strength of the reverse defeat B>A. Jobst criticized
that this would make it difficult to convince people to vote.
http://listserver.dreamhost.com/pipermail/election-methods-electorama.com/2004-November/014127.html

Mar 5, 2005: Russ Paielli brought the method up again as being a good public 
proposal. He referred to my 2003 post.
http://listserver.dreamhost.com/pipermail/election-methods-electorama.com/2005-March/014955.html
http://listserver.dreamhost.com/pipermail/election-methods-electorama.com/2005-March/015066.html

by Mar 17: The name "DMC" was suggested by Forest, and generally accepted.
http://listserver.dreamhost.com/pipermail/election-methods-electorama.com/2005-March/015181.html

Kevin Venzke



	

	
		
___________________________________________________________________________ 
Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger 
Téléchargez cette version sur http://fr.messenger.yahoo.com