[EM] Dave on approval, ranked ballots

[Dave Ketchum]

On Wed, 27 Jul 2005 00:24:55 +0200 (CEST) Kevin Venzke wrote:

> Dave,
> 
> --- Dave Ketchum <davek at clarityconnect.com> a écrit :
> 
>>My comparison of methods:
>>      Approval - its backers like to brag, but it is not that simple - 
>>unlike Condorcet and IRV, voters CANNOT say:  I prefer Nader but, only if 
>>I cannot have Nader, give me Kerry as better than Bush.
>>
> 
> However, ranked methods won't always obey your request. Condorcet methods
> and IRV will both sometimes take the vote "Nader>Kerry>Bush" and elect Bush,
> when if you had instead not ranked Nader, the method would elect Kerry. That
> is, the method ignores the fact that you said "If I cannot have Nader, give
> me Kerry."
> 
> Condorcet methods will sometimes see the "give me Kerry as better than Bush"
> part and give the win to Kerry, when it could have gone to Nader otherwise,
> despite the fact that your vote says "ONLY if I cannot have Nader, give me
> Kerry."
> 
> The freedom of expression that a ranked ballot gives voters is to some
> extent an illusion.


Please give an example, but:
      No IRV - let that be a separate project.
      No cycles - likewise, unless you state that there is no problem 
without cycles being involved.

> 
> Kevin Venzke

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  Dave Ketchum   108 Halstead Ave, Owego, NY  13827-1708   607-687-5026
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