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st: panel regression with switching by id?


From   "George Hoffman" <[email protected]>
To   <[email protected]>
Subject   st: panel regression with switching by id?
Date   Mon, 30 Apr 2007 12:49:29 -0500

dear statalisters - 

i'm resending this with more detail in hopes of any help-
i have a panel time-series data set, i=id, t=time
i am trying to do a regression of two indep vars on one dep var. the basic
form will be:
Zi = aXi + bYi + ci
 
however, X and Y were measured with two different instruments, whose
identity is not in the database. instrument 2 has a fixed ofset from
instruemtn 2, such that
X2 = X1+10  and Y2 = Y1+10
for all t within i, the measurements were made with the same instrument
 
i would like to fit the first general equation, and determine whether each
id best fits instrument 1 or 2.
i have read switchr but i don't think this fits.
 
any help is appreciated,
 
thank you
 
george hoffman

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