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st: sureg and constraints


From   "Stephan Brunow" <[email protected]>
To   <[email protected]>
Subject   st: sureg and constraints
Date   Thu, 21 Dec 2006 12:48:39 +0100

Dear Statalisters,

we are faced with a constraint problem for sureg.

There is an equation system of n equations. 

Y1 = alpha1 + beta1 * x1 
Y2 = alpha2 + beta2 * x2
...
Yn = alphan + betan * x3

The theory states that all betai are the same.
How can we restrict it in STATA with a constraint?
We are using STATA 8.2

With many thanks and Happy-Christmas-Wishes,

Stephan
PS: Sorry if it is posted twice.

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