[EM] STV - the transferrable part is OK (fair), the sequential round elimination is not

[Jonathan Lundell]

On Oct 31, 2009, at 7:29 AM, Kathy Dopp wrote:

> 3. STV does *not* achieve proportional representation at all unless
> there is no vote splitting and just the right number of candidates run
> who support each group's interests. I.e. the success of methods like
> STV to achieve proportional representation rest in the unlikely
> assumption that just the right proportion of candidates run (or more
> precisely an equal proportion of candidates run) in proportion to the
> number of voters in each separate group.  This is just simple
> mathematical fact.

STV satisfies the Droop Proportionality Criterion. Any competing  
proposal for a proportional system must accomplish at least that, it  
seems to me, to be taken seriously.