Jonathan Lundell wrote:
This is in part Arrow's justification for dealing only with ordinal
(vs cardinal) preferences in the Possibility Theorem. Add may label it
preposterous, but it's the widely accepted view. Mine as well.
Arrow's Theorem seems like a red herring in the context of the cardinal
vs. ordinal debate. IIA makes just as much sense when applied to range
voting as it does to ranked voting. Arrow was just making a simplifying
assumption and I don't see that it makes his results lose generality.
-- Andrew
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