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st: merge in panel data

From   Claudio Cruz Cazares <>
Subject   st: merge in panel data
Date   Wed, 18 Jun 2008 12:54:17 +0200

Hi to all,

I'm working with panel data but the data base is split in two files. In one file I have x variables from 1994 to 2002. In the second file I have  the same x variables form 2003 to 2005 and y variables from 1994 to 2005.

After I merge the files, the  x variables are not added into the other file. I have only missing values form 1994 to 2002 and values form 2003 to 2005. The y variables are well merged. I have tried to merge the files in both sense but the problem still remains.

The command I used is :

merge id using ESSE

Does anyone knows how can I solve this problem?. 

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