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st: Date: Tue, 3 Aug 2004 17:22:30 +0900


From   =?ks_c_5601-1987?B?sejH9sG+?= <kim@keri.org>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Date: Tue, 3 Aug 2004 17:22:30 +0900
Date   Tue, 3 Aug 2004 04:22:34 -0400 (EDT)

Dear, 




I want to examine Bresnahan's conjecture variation. So I just try to use 3 Stage Least Square model like follows, 




Q = a0 + a1 * P + a2 * Y + a3 * Z + a4 * P * Z + u 

P = b0 + b1 * Q + .... - c1 * (Q/(a1 + a4 * Z)) + v 




But actually, I don't know the commend for setting Q/(a1 + a4 * Z) as a variable on STATA. 




How can I estimate such a model on STATA? 

I will appreciate you if you let me know the commend and knowhow for this 3SLS methord 




 How> can I estimate such a model on Stata? I appreciate any information.> Thanks in advance 

 How> can I estimate such a model on Stata? I appreciate any information.> Thanks in advance 

Thank you in advance 

 

 

Kim 


 

 

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