Re: st: Balancing panel data uniquely identified by TWO variables

[Stas Kolenikov <skolenik@gmail.com>]

On Sat, Nov 6, 2010 at 9:42 PM, Victor Gauto <vgauto@gmail.com> wrote:
> I have an unbalanced panel I would like to “fill” out.  I’ve tried
> using the “tsset” and “tsfill, full” commands without getting the
> results I wanted.  As an example, I have 2 companies selling 2
> products in 3 years.  So if my data were complete I should have
> 2X2X3=12 observations to have a balanced panel.  I have fewer
> observations, since some companies have not sold all the products in
> all the years.  For example, I have 7 observations.  I would like to
> fill this gap by including missing observations due to lack of sales
> of certain products, or certain years.

You can try to run a series of -joinby- based on unique values of your
variables, and then -merge- them with the actual data.

-- 
Stas Kolenikov, also found at http://stas.kolenikov.name
Small print: I use this email account for mailing lists only.

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