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st: symmetry and homogeneity restrictions


From   Camilla Andersson <camilla.andersson@econ.umu.se>
To   statalist@hsphsun2.harvard.edu
Subject   st: symmetry and homogeneity restrictions
Date   Mon, 08 May 2006 20:31:05 +0200

Dear all stata users,

My question is simply: How do I impose symmetry and homogeneity restrictions in stata?

For example if I want to estimate a regression an impose the parameter restrictions bnk=bkn

and the sum of all betas is equal to 0?



Kind regards

Camilla

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