Re: st: re: first difference in multidimensional panel

[mm3040@columbia.edu]

Dear Kit, Martin and Nick,

Thanks for your comments and suggestions. It helped a lot,

Best,
Modhura.

Quoting Kit Baum <baum@bc.edu>:

> <>
> Martin said
> " when using tsset how do I create unique id for each
> industry-country pair"
>
> I cannot see how this is related to -tsset-ing. -egen, group()- does the job
> with or w/o it...
>
>
> It is common to have a 'multidimensional panel', i.e. one in which
> there is no unique 'i'. For instance my data are indexed by 'i'
> (exporter), 'j' (importer) and 't' (time). How do I create an 'i'
> variable for use in -tsset- or -xtset-? egen group(exporter importer)
> creates a new variable for each distinct country-pair, and that
> variable can be used in -tsset-.
>
> Kit Baum   |   Boston College Economics & DIW Berlin   |
> http://ideas.repec.org/e/pba1.html
>                               An Introduction to Stata Programming  |
> http://www.stata-press.com/books/isp.html
>    An Introduction to Modern Econometrics Using Stata  |
> http://www.stata-press.com/books/imeus.html
>
>
>
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