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R: st: RE: test after ivprobit


From   sara borelli <saraborelli77@yahoo.it>
To   statalist@hsphsun2.harvard.edu
Subject   R: st: RE: test after ivprobit
Date   Fri, 15 Aug 2008 11:12:30 +0000 (GMT)

Thank you very much,

it is exactly what I was looking for
Sara


--- Gio 14/8/08, Martin Weiss <martin.weiss@uni-tuebingen.de> ha scritto:

> Da: Martin Weiss <martin.weiss@uni-tuebingen.de>
> Oggetto: st: RE: test after ivprobit
> A: statalist@hsphsun2.harvard.edu
> Data: Giovedý 14 agosto 2008, 13:35
> -h test- has a section at the bottom about multiple
> equations. Just note the difference in the following
> 
> **********
> webuse laborsup, clear
> ivprobit fem_work fem_educ kids (other_inc = male_educ)
> *both equations
> test  other_inc fem_educ
> *only "main" equation
> test[fem_work]:  other_inc fem_educ
> **********
> 
> 
> HTH
> Martin
> 
> 
> 
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of
> sara borelli
> Sent: Thursday, August 14, 2008 12:45 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: test after ivprobit
> 
> Dear Statalist members,
> 
> I am estiamting a probit model with endogenous regressor.
> 
> ivprobit y1 x1 x2 x3 ....xn (y2=z1 z2)
> 
> where y2 is my endogenous variable. I want to test the
> joint significance of some of the X's  in the main
> equation, thus I type
> 
> test x1 x2 x3;
> but stata reports:
>  ( 1)  [y1] x1= 0
>  ( 2)  [y2] x1= 0
>  ( 3)  [y1] x2= 0
>  ( 4)  [y2] x2= 0
>  ( 5)  [y1] x3= 0
>  ( 6)  [y2] x3= 0
> 
> so it seems that it tests each X also in the reduced form
> of y2. What should I do if I want to have a test of the
> joint signficance of the coeffcients in the main equation
> only ?
> 
> 
> thank you for any help
> Sara
> 
> 
> 
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      Posta, news, sport, oroscopo: tutto in una sola pagina. 
Crea l&#39;home page che piace a te!
www.yahoo.it/latuapagina

*
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