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st: summation within a nonlinear regression


From   "Amir Farmanesh" <[email protected]>
To   <[email protected]>
Subject   st: summation within a nonlinear regression
Date   Sun, 17 Feb 2008 12:33:42 -0500

Dear all,
I am working on a $B!F(Jnew economic geography$B!G(J paper, I want to run the following regression:


$B&$(J log (Z jt) = $B&A(J . [ log [ $B-t(J (Y kt) . exp ( - $B&B(J. (D jk) ) ] (J-(J [ log [ $B-t(J (Y kt-1) . exp ( - $B&B(J. (D jk) ) ]] + $B&$(J $B&E(J jt


Here $B-t(J is between k and j (j as the max and k as the min) and t is the observation period. Z is a variable related to wage, Y is GDP and D is distance.

How should I run this in Stata? I don$B!G(Jt know how to mix nl and summation. I would appreciate any advise.


regards,
Amir Farmanesh
Ph.D. in Policy Studies, candidate
University of Maryland, School of Public Policy
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