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Description

    craggit fits Cragg's "two-tier" (also sometimes called "two-stage"
or "double-hurdle") alternative to tobit for corner-solution models,
which incorporates the probit model in the first tier and truncated
normal regression in the second tier (e.g., truncreg with a lower
limit = 0).  The main advantage of craggit over tobit is that an
independent variable's effect on the probability of a positive outcome
and its effect on the quantity of that outcome are determined by
separate processes.  Also, tobit is nested in craggit, making it a
popular choice among "two-tier"models.

 More information: http://www.stata-journal.com/article.html?article=st0179

HTH,

Joao Lima

2010/5/11 Martin Weiss <martin.weiss1@gmx.de>:
>
> <>
>
>
> Forwarded on behalf of Vincenzo. Note it is better to contact the list
> directly.
>
>
>
> So, does anyone know about the fate of -dhurdle-? I have an old version
> dated
> *! version 1.0 12 Feb 2003
> lying around on my hard drive...
>
>
>
> HTH
> Martin
>
>
> -----Ursprüngliche Nachricht-----
> Von: vincenzo salvucci [mailto:vincenzo.salvucci@gmail.com]
> Gesendet: Dienstag, 11. Mai 2010 15:40
> An: martin.weiss1@gmx.de
> Betreff: dhurdle-stata
>
> Dear Sir,
>
> My name is Vincenzo and I'm a phd student.
> I found on the web
> (http://www.stata.com/statalist/archive/2009-02/msg00650.html) that
> you answered to a thread about -dhurdle- in stata.
>
> Since the webpage where this file was previously available
> (http://www.sml.hw.ac.uk/somjaf/Stata/dhurdle.zip) does not exist
> anymore, I was wondering whether it could be possible for you to send
> me the file "dhurdle.zip".
>
> Thank you in advance,
> Best regards
>
> Vincenzo
>
>
>
> --
> Vincenzo Salvucci
> Ph.D. student
> Dipartimento di Economia Politica (Department of Economics)
> Facoltà di Economia "Richard M. Goodwin" (Faculty of Economics)
> Università degli Studi di Siena
> Piazza S.Francesco, 7 - 53100 Siena, Italy
> Email: salvucci3@unisi.it
>           vincenzo.salvucci@gmail.com
>
>
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>



-- 
----------------------------------------
Joao Ricardo Lima, D.Sc.
Professor
UFPB-CCA-DCFS
Fone: +558387264913
Skype: joao_ricardo_lima
----------------------------------------

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


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