On Nov 16, 2009, at 10:53 AM, Andrew Myers wrote: > Abd ul-Rahman Lomax wrote: >> Notice that the requirement of Arrow that "social preferences be insensitive >> to variations in the intensity of preferences" was preposterous. Arrow >> apparently insisted on this because he believed that it was impossible to >> come up with any objective measure of preference intensity; however, that >> was simply his opinion and certainly isn't true where there is a cost to >> voting. > Arrow doesn't impose that requirement; that's not what IIA says.
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. ---- Election-Methods mailing list - see http://electorama.com/em for list info
