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st: stata9.0 and 9.2..clustering?
there is a thing really strange that is happening using either
stata9.0 or stata 9,2.
I am estimating a panel equation where the id is the worker, and of
I do my estimations clustering by the region where the worker works.
(So it is possible that from one year to another the worker can change
region of work).
So, when I use stata 9.0 it does the estimates. When I use stata 9.2
it says "Panels non nested within cluster".
This sentence has happeared to me already in stata 9.0 but only when I
tried to do the regression with lagged variables, so that for workers
changing region it had sense in effect.
What could is mean to you?
What is that the problem?
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