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st: question


From   iusanetashvili@eerc.kiev.ua
To   statalist@hsphsun2.harvard.edu
Subject   st: question
Date   Thu, 10 Apr 2008 16:59:49 +0300

hi

I want to estimate three equations that are the following:
Sij = ?1j + ?2j Ln Expi + ?3j Ln HSizei + ?4j UnderAge + ?5j Gender +  
?6j Age + ?7j Nat + ?8j Edu + ?9j Job + ?10j Loc + ui;
Where S is a share of household consumption = money spent on one  
commodity / total expenditures. I want to estimate for three goods:  
food, education and health care.
I run SURE and according to the results:
Correlation matrix of residuals:
               es1_food  es2_medser    es4_educ
   es1_food      1.0000
  es2_medser     -0.1720      1.0000
   es4_educ     -0.0947     -0.0490      1.0000

Breusch-Pagan test of independence: chi2(3) =  2172.570, Pr = 0.0000
Which means that error terms are correlated. I don’t know what I have  
to do further… can you give me any advice? or send me an similar  
example. Thanks in advance

BR
Irakli







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