[EM] Jameson: Regarding preference criteria
nkklrp at hotmail.com
Mon Nov 21 13:41:29 PST 2011
Reductio ad absurdem. One voter, two candidates. Preference-based
criterion: "If the voter votes for A but actually prefers B, then B should
Remember that you, not I, propose that criterion.
But, people say, what if they meant to vote for A? Nope, you say,
doesn't fit the criterion.
Nonsense. How do you propose to establish that someone preferred the one
that s/he voted against, especially if s/he denies it?
Your criterion is unusable.
So fine, I can find whether system X meets this
No, you can't.
That's because you have no way of determinng someone's
preferences independent of their expression of them.
but we can't have a reasonable conversation about it
You got that part right.
half of the relevant examples are somehow arbitrarily outlawed because they
No, it's because your criterion relies on unavailable information.
Preference-mentioning criterion: "Imagine the voter prefers B, but due to
an epileptic seizure, votes for A. The correct winner in this case would be
B. Therefore, whenever we see a vote for A, we should elect B."
Again, that's _your_ preference-mentioning criterion. Understand that. I agree that
your criterion is ridiculous.
just saying that a criterion can be justified on the basis of preferences,
but, like the system itself, must ultimately speak in terms of ballots and
Hello? I guess it's necessary to repeat this again:
My preference criteria stipulate preferences and relation between preferences and
voting. Thereby, they indirectly stipulate about ballots.
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