On Thu, 6 May 2004, John Adams wrote:
> On Thursday, May 6, 2004, at 10:37 AM, Miles Jackson wrote:
>
> > No, they're not experiments. In an experiment, you manipulate the
> > causal factor (indepedent variable) and assess the change in another
> > factor. They are interesting econ data, but they're not
> > experimental data.
>
> Really? So when you apply a varied set of pricing changes over time
> across a chain of few hundred stores on an item or a set of items
> throughout your chain and see how the sales of these and substitute
> commodities respond, you aren't experimenting (among other things)?
>
I don't know enough about how they set the prices. If they just randomly assign different stores to have diff prices for the same item, you're right. Is that really what they do?
Miles