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st: RE: How to set up data for estimation

From   "Maarten Buis" <>
To   <>
Subject   st: RE: How to set up data for estimation
Date   Thu, 26 Oct 2006 08:16:12 +0200

Nihal Pitigala:
If the data is set up as in the example you show, than you are ready to go: 
just type -reg LnTrade LnTariff LnTransports- (without the hyphens). You 
might want to consider moving into crossed random effects here using 
-xtmixed-, since each pair of countries is nested within its constituent 
countries plus each pair consists of multiple entries, which are again nested 
within sector. The entry for -xtmixed- in the XT manual is good in explaining 
how to set that model up. 

Maarten L. Buis
Department of Social Research Methodology 
Vrije Universiteit Amsterdam 
Boelelaan 1081 
1081 HV Amsterdam 
The Netherlands

visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z434 

+31 20 5986715

--- Nihal Pitigala wrote:
Can anyone please tell me how to set up the data to estimate OLS  in stata 
and the set of commands. <snip>  I have country i and j and sector k  as in 
equation LnTRADE jk =  a1LnTARIFF ijk  + 2LnTRANSPORT ijk + uijk 

Data is in the following format:

Country Partner GTAP SectorLn Trade       LnTariff             Ln Transports
Albania Australia       21 agro -3.178341688    2.546306314     1.941615225
Albania Australia       22 milk -4.937585181    3.714802733     2.385086315

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