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Re: st: RE: Heckman two-step estimator


From   Sridhar Telidevara <sridhar.telidevara@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Heckman two-step estimator
Date   Sun, 14 Feb 2010 10:26:54 -0500

I am sorry... I did reinstall cmp and

 -which cmp-

 which cmp
c:\ado\plus\c\cmp.ado
*! cmp 3.5.1 2 February 2010
*! David Roodman, Center for Global Development, Washington, DC, www.cgdev.org
*! Copyright David Roodman 2007-10. May be distributed free.

and the problem still remains even after reinstallation...

Fitting full model.

               cmp_lnL():  3499  ghk2setup() not found
                 <istmt>:     -  function returned error
r(3499);


Sridhar

On Sun, Feb 14, 2010 at 10:09 AM, Martin Weiss <martin.weiss1@gmx.de> wrote:
>
> <>
>
>
> You still owe the list answers to the questions at the bottom of my previous
> post, though...
>
>
>
> HTH
> Martin
>
> -----Ursprüngliche Nachricht-----
> Von: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Sridhar
> Telidevara
> Gesendet: Sonntag, 14. Februar 2010 16:07
> An: statalist@hsphsun2.harvard.edu
> Betreff: Re: st: RE: Heckman two-step estimator
>
> I ran the same program that you sent me. It fits the individual models
> but not the full model.
>
> . clear*
>
> .
> . cmp setup
>
> .
> . webuse laborsup
>
> .
> . gen byte kids2 = kids + int(uniform()*3)
>
> .
> . cmp (kids=fem_educ) (kids2=fem_educ), ind($cmp_oprobit $cmp_oprobit) nolr
>
> Fitting individual models as starting point for full model fit.
>
> Iteration 0:   log likelihood = -800.76494
> Iteration 1:   log likelihood = -800.48687
> Iteration 2:   log likelihood = -800.48687
>
> :::::results:::::::
>
> Fitting full model.
>
>               cmp_lnL():  3499  ghk2setup() not found
>                 <istmt>:     -  function returned error
> r(3499);
>
> .
> . tech(dfp) qui
> unrecognized command:  tech
> r(199);
>
>
> Error 3499: The specified variable or function could not be found.
>        In the case of a function, it was not already loaded, it is not
>        in the libraries, and there is no .mo file with its name.
>
>
> Sridhar
>
>
> On Sun, Feb 14, 2010 at 9:41 AM, Martin Weiss <martin.weiss1@gmx.de> wrote:
>>
>> <>
>>
>> This example runs without a hitch for me:
>>
>> *************
>> clear*
>> cmp setup
>> webuse laborsup
>> gen byte kids2 = kids + int(uniform()*3)
>> cmp (kids=fem_educ) (kids2=fem_educ), ind($cmp_oprobit $cmp_oprobit) nolr
>> tech(dfp) qui
>> *************
>>
>>
>> You may want to -ssc uninstall cmp- and then -ssc inst cmp-.
>>
>> What does -which cmp- give you?
>>
>>
>> HTH
>> Martin
>>
>> -----Ursprüngliche Nachricht-----
>> Von: owner-statalist@hsphsun2.harvard.edu
>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Sridhar
>> Telidevara
>> Gesendet: Sonntag, 14. Februar 2010 15:34
>> An: statalist@hsphsun2.harvard.edu
>> Betreff: Re: st: RE: Heckman two-step estimator
>>
>> Thank you Martin. I ran a bivariate seeming unrelated ordered probit
>> just to understand the command. It says ghk2setup() not found.
>> However, ghk2 is already installed and the software is up-to-date. I
>> am using stata11. I also ran an example given in the help. It says the
>> same. Searched web to learn more about ghk2setup() but no clue as to
>> what is happening.
>>
>> Any thoughts?
>>
>> Thanks,
>>
>> Sridhar
>>
>> On Sun, Feb 14, 2010 at 4:47 AM, Martin Weiss <martin.weiss1@gmx.de>
> wrote:
>>>
>>> <>
>>>
>>> Have you tried -ssc d cmp-?
>>>
>>>
>>> HTH
>>> Martin
>>>
>>> -----Original Message-----
>>> From: owner-statalist@hsphsun2.harvard.edu
>>> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Sridhar
>>> Telidevara
>>> Sent: Sonntag, 14. Februar 2010 08:08
>>> To: statalist@hsphsun2.harvard.edu
>>> Subject: st: Heckman two-step estimator
>>>
>>> How would one go about estimating Heckman two-step estimator if both
>>> the stages involve ordinal outcomes. Say the first stage has 5 levels
>>> and the second stage has 3 levels. How would one calculate
>>> inverse-mills ratio in the first step and incorporate them in the
>>> second step. I would highly appreciate your help.
>>>
>>> Thanks,
>>>
>>> Sridhar
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