Re: ?Value of information without utilities?

[Judea Pearl]

        I find it hard to envision a notion of value of information that is not
        somehow value related.  I'd be interested in anyone who thinks he/she can.

        Kathy Laskey

Kathy
The pertinent result here is a 1954 theorem by
Blackwell and Girschick (?), saying:
Information source A is consistently more valuable
than B, across all utilities and prior probabilisties,
if and only if B is a stochastic mixture of A.
(i.e., there is a stochastic  matrix M, such that B = MA)
=======Judea