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# Re: st: re: xtivreg

 From W Zang To statalist@hsphsun2.harvard.edu, Kit Baum Subject Re: st: re: xtivreg Date Sun, 02 May 2010 11:02:30 +0100

```Thank you very much for your help.

Best Wishes,

Linda

Quoting Kit Baum <baum@bc.edu>:

```
```<>
Linda said

I am trying to use xtivreg to estimate two-stage least squares
simultaneous equations. I have two endogenous variables Y1 and Y2. Y1
and Y2 are affected by different exogenous variables. Y1 is affected
by X1, X2, X3 and Y2 is affected by X1, X4, X5.

Y1 = a0 + a1*Y2 + a2*X1 + a3*X2 + a4*X3
Y2 = b0 + b1*Y1 + b2*X1 + b3*X4 + b4*X5

xtivreg y1 (y2 = x4 x5) x1 x2 x3, fe
xtivreg y2 (y1 = x2 x3) x1 x4 x5, fe

```
The syntax is the same as it would be for a non-panel IV estimator. Just list the variables excluded from each equation within the parenthesized expression.
```
```
Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html An Introduction to Stata Programming | http://www.stata-press.com/books/isp.html An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html
```

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```
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