robert bristow-johnson wrote:
On Apr 29, 2010, at 10:25 AM, Jameson Quinn wrote:
STV uses IRV.
i thought it was the other way around. no? really, isn't "STV" the
more technical term (that is descriptive of what is happening in those
rounds) and "IRV" or "RCV" or "PV" or whatever are the terms used to
present to the public?
IRV is simply single-winner STV. The term "IRV" (or RCV or AV or
whatever) is used to distinguish the single-winner method from a PR use
(and the single-winner case is easier to describe than the quota
mechanics of STV).
Single winner STV (IRV) is not very good. 2-winner STV is better... as
the number of winners increase, the constraints are increasingly because
of the quota and less because of the "in-between" dynamics, and so STV
gets better with increasing numbers.
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