[EM] Pairwise Approval Voting

[Paul Kislanko]

It "feels like" at first touch Proportional approval. But here's the
thing...

You use the term "pairwise matrix" with cells = 0 or 1 depending upon
whether the alternative is approved or not. But the approval status is by
voter (= by ballot), so are you suggesting a pairwise matrix for each
ballot? That seems unnecessary.

If you mean cell i,j is the count of ballots where i is ranked better than
j, it is the same as various other methods as far as constructing the
alternative pairwise-matrix is concerned.

> -----Original Message-----
> From: election-methods-electorama.com-bounces at electorama.com 
> [mailto:election-methods-electorama.com-bounces at electorama.com
> ] On Behalf Of Russ Paielli
> Sent: Saturday, March 26, 2005 2:49 PM
> To: election-methods at electorama.com
> Subject: [EM] Pairwise Approval Voting
> 
> Hi Folks,
> 
> Let me define a variation of Approval Voting with the same voting 
> procedure as standard Approval Voting but a different tally 
> procedure. 
> I'll call it Pairwise Approval Voting (PAV).
> 
> The tally procedure starts with the construction of a pairwise matrix 
> from the ordinal information in each vote. That is, if candidate i is 
> approved and candidate j is unapproved, then the (i,j) element gets a 
> one and the (j,i) element gets a zero. The "regular" approval 
> counts go 
> on the diagonal. The CW wins if one exists, otherwise the 
> least-approved 
> candidate is dropped until a CW is found.
> 
> Has this or a similar method been proposed before?
> 
> Do you consider it better than, worse than, or equivalent to, 
> standard 
> Approval Voting? Why?
> 
> Russ
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