[EM] proportional constraints - help needed

[James Gilmour]

Although you do not appear to favour STV-PR to address your problem, I should have made it clear in my post, copied below, that
there is only ONE election.  That is to determine the set of successful candidates who have to be ordered for the list.  There is
then a succession of COUNTS of the same ballot papers, with the number of vacancies diminished by one at each successive count and
the candidate defeated in the previous count omitted.

Apologies if my lack of specificity in the original wording caused any confusion or misunderstanding.	
James


> -----Original Message-----
> From: James Gilmour [mailto:jgilmour at globalnet.co.uk] 
> Sent: Tuesday, February 05, 2013 11:49 PM
> To: 'Jonathan Lundell'; 'Peter Zbornik'
> Cc: 'election-methods at electorama.com'
> Subject: RE: [EM] proportional constraints - help needed
> 
> 
> > Jonathan Lundell  > Sent: Tuesday, February 05, 2013 6:40 
> PM There is, 
> > I think, an underlying misconception here, namely that STV order of 
> > election can be interpreted as a ranking of level of support. It's 
> > not, in the general case.
> 
> Jonathan is absolutely right.  If you want lists ordered by 
> relative support, you need to adopt a procedure like that 
> recommended by Colin Rosenstiel and used by some UK political 
> parties when they have to select ordered lists for 
> closed-list party-PR elections.
> 
> First you use ordinary STV-PR to elect the required total 
> number of candidates.  Then you conduct a series of STV-PR 
> elections, each for one vacancy less than the preceding 
> election.  The unsuccessful candidate takes the lowest vacant 
> place on the ordered list.  Continue until you run-off 
> between the top-two for the second-last place.
> 
> For full details, see:	
>   http://www.crosenstiel.webspace.virginmedia.com/stv/orderstv.htm	
> and	
>   http://www.crosenstiel.webspace.virginmedia.com/stv/ordstvdt.htm
> 
> The second one includes a constraint for candidate's sex.
> 
> James Gilmour
> 
> 



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