Re: Opinions as Evidence: Should Rational Bayesian Agents Commonize Priors

From: Robin Hanson (
Date: Tue May 08 2001 - 07:16:10 MDT

Curt Adams wrote:
>You do attempt to justify that people *should* have common priors.
>"If John and Mary have different priors, then they should realize some
>physical process produced that difference. And if that difference was
>produced randomly or arbitrarily, it is not clear that John and Mary
>should retain it."
>That's what I was addressing. If John and Mary do not retain their
>priors, the under most circumstances they aren't acting as rational
>Bayesian agents. That seems a legitimate reason to maintain
>differing priors.

You were addressing updating on the fact that someone else received
the prior they did, not on the fact of yourself receiving the prior
you did. I again point you to: or .ps

Robin Hanson
Asst. Prof. Economics, George Mason University
MSN 1D3, Carow Hall, Fairfax VA 22030-4444
703-993-2326 FAX: 703-993-2323

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