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Re: st: Panel ID and Time Variable


From   "shyamalshyamalshyamal" <shyamalshyamalshyamal@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Panel ID and Time Variable
Date   Mon, 11 Apr 2005 19:15:21 -0000

Thanks, Armen, but that does not work, perhaps because, my data are
individual level. When I run the command as you mentioned, it gives
warning that "repreated values in panel".
I need something different.
Best wishes,
Shyamal
--- In statalist@yahoogroups.com, armen@u... wrote:
> Hi,
>
> I guess, you must first -tsset- your data, i.e.
>
> . tsset nations waves
>
> and then run your regressions.
>
> Hope this helps.
>
> Armen
>
>
> Zitat von Shyamal Kumar Das <shyamal@s...>:
>
> > Hi:
> > I am new in statalistserv. Let me describe my problem. I
> > have a cross-national dataset for 93 countries that I
> > collected from ICPSR's World Value Surveys. Now, in this
> > dataset, the unit of analysis is INDIVIDUAL (a total of
> > approximately 42,000 individuals for 93 countries) with
> > three waves (years): 1981, 1990, and 1997; when I want to
> > run Random or Fixed effect models, and put "nations" as
> > Panel ID, I get results, but when I put "nations" as Panel
> > ID and "Waves" as Time variable, STATA suggests that there
> > are repeated time values in the panel. I guess this is
> > because each individual (unit of analysis) has the same
> > year. For example, 4000 indivials of France in 1981 have
> > 1981 as time variable. Perhaps, therefore, I do not get any
> > result out of it. I know that by calculating nations'
> > averages, and entering these as new variables might solve
> > the problem. I was loooking for some simpler solution to the
> > problem so that I do not need to reenter data. I have two
> > questions in this regard: (1) How can I do panel analysis
> > using this dataset putting "Nations" and "Waves" as my Panel
> > ID and Time variable respectively? (2) If I do not put Time
> > variable, but put Panel ID and run regression, and get
> > results, is it ok for my panel analysis?
> > I would appreciate if anyone kindly enlighten me in the
> > above problem. This will save me at this point.
> >
> > Shyamal
> > *
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> >
>
>
> *
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