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st: RE: Re: panel data management - dividing into quartiles


From   "Scott Merryman" <smerryman@kc.rr.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Re: panel data management - dividing into quartiles
Date   Sun, 15 May 2005 19:22:44 -0500

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
> statalist@hsphsun2.harvard.edu] On Behalf Of Crystal Lopez
> Sent: Sunday, May 15, 2005 4:54 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: Re: panel data management - dividing into quartiles
> 
> Thank you both Scott and David for your quick replies.
> 
> Regarding Scott's reply, assets is not actually my
> dependent variable (although I have used it in the
> calculation of some of my variables, but just as part
> of a ratio), the variable "assets" itself is not in my
> regression as such. I just want to use it to be able
> to    split my dataset up so as to estimate my
> regression separately for different company sizes.
> Would Scott's comments still apply in this case,
> seeing as it's not the dependent variable being
> "truncated"? And if so, can qreg be used with panel
> data in any case, I tried but it doesn't seem to work.

No, it is not the same problem.  In this case, you are only examining
(testing?) different parameter vectors for subsets of the data (i.e. a test
of structural change or a Chow test).


Scott



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