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st: re: first difference in multidimensional panel


From   Kit Baum <[email protected]>
To   [email protected]
Subject   st: re: first difference in multidimensional panel
Date   Fri, 24 Apr 2009 11:41:33 -0400

<>
Also when using tsset how do I create unique id for each
industry-country pair (where both industry and country are string
variables).

help egen, function group(). The variable created by egen can become your panel 'i' variable.


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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