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Re: st: xtset and xtreg for panel data
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: xtset and xtreg for panel data
Date
Mon, 28 Nov 2011 00:17:21 +0000
You don't state what you regard as a panel, but manifestly -xtset
country year- won't work because you have different stations within
countries. If panels are stations in countries you can proceed, but
seemingly not otherwise except with a different kind of analysis.
You write as if your problem is technical, meaning that we should be
able to tell you what the solutions are, but your main problem appears
rather to be conceptual, and we can't tell you what your ideas are
about the data generation process.
Nick
On Sun, Nov 27, 2011 at 8:08 PM, Andrew Wong Yoon Loong
<[email protected]> wrote:
> I am working with panel data that is similar to the following:
>
> Station Country Year Var1 Var2
> 1 US 1990 25 25
> 1 US 1991 15 18
> 2 US 1990 60 12
> 2 US 1991 300 50
> 3 BR 1990 25 25
> 3 BR 1991 300 50
> 4 BR 1990 25 25
> 4 BR 1991 300 50
>
> I'm trying to use the xtreg command to perform both fe and re models.
> However, I can't perform the initial xtset country year because of
> duplicates. Is there a way around this problem? I know one option is
> simply to employ LSDV and create a dummy for each country but I'm
> hoping to still be able to use xtreg.
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