On Thu, Apr 18, 2002 at 01:39:59PM -0700, Brent Meeker wrote:
> Exactly.  So what does the assumption about the complete mathematical
> description add?

It's so that your preferences are well defined. 

> > As a positive theory, decision theory is going to be wrong sometimes (e.g.
> > not predict what people actually do), but it may be able to make up for
> > that with conceptual elegance and simplicity.
> Hmm.  Maybe I misunderstood your objective.  I thought it was to decide
> what action to take - not to predict what some person will do.

Did you not understand the distinction between "positive" and "normative"? 
A positive theory explains and predicts, a normative theory tells you what 
you should do. I'm interested in both.

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