st: Re: problem with overid with ivtobit command

[Kit Baum <baum@bc.edu>]

< >
Have you indeed installed the overid command?  -which overid- should  
tell you that.

If you -sysuse auto- and run the example from the overid help file,  
does it work?


    . ivtobit gear_ratio displacement (mpg=length weight turn)  
[fw=rep78], twostep ll(2.2)

    . overid

Kit

Kit Baum, Boston College Economics and DIW Berlin
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html


On Sep 22, 2008, at 02:33 , Olivier wrote:


> I have estimated with tobit instrumental regression this equation  
> (on cross section data) i.e
>
> ivtobit Y1 X1 X2 X3 (Z=X4 X5) twostep, ll(0)
>
> Next, I would like to test the overidentifying restrictions after  
> the ivtobit command
> Thus I am using the overid module developped by Christopher Baum  
> with the next command
>
> overid
>
> I have this following message : invalid syntax
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