[EM] The responsiveness of Condorcet
Adam Tarr
atarr at purdue.edu
Sun Jul 13 21:27:02 PDT 2003
David Gamble wrote:
>In James Armytage-Green's post he refers to a scenario in which Congress
>is elected in single-member districts by Condorcet. This is what a number
>of people posting on this list appear to support ( though James
>Armytage-Green supports CPO-STV in multi-member districts as an ideal
>method).
Has ANYONE on this list said that they want single-member districts using
Condorcet voting? I don't remember ever hearing that. Some people have
expressed a desire to have single-winner districts in the past (to get a
closer link to the voters) but most offer a caveat of some mixed member
proportionality.
>I have stated in several postings that there can be nothing proportional
>about the allocation of a single seat and that all single-member methods
>can produce bad results when used to elect multi-member bodies.
Doesn't that suggest that arguing that Condorcet is bad because it fails to
produce proportionality, is sort of missing the point?
>I still believe that for single offices Condorcet is too favourable
>towards candidates of parties who successfully position themselves in the
>centre.
Right, candidates who appeal to the largest group of voters tend to win
Condorcet elections. You say this like it's a bad thing. Such a candidate
also always wins IRV elections if the voters use sufficiently intelligent
strategy. Smart voters who realize their edge candidate will lose in the
final runoff will abandon their first choice and vote for the
centrist. It's just easier and requires less guesswork on the voter's part
with a good Condorcet method.
>Domination by any single party be it of the left, right or centre is not a
>good thing.
I'm sure Alex would agree. The point was simply that, if you had to pick a
party that was going to be disproportionately represented, you'd want it to
be the most moderate party. IRV (and plurality for that matter) can
produce disproportionate results that swing wildly from too far left to too
far right.
-Adam
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