I answered a similar question some time ago:
http://www.stata.com/statalist/archive/2006-04/msg00784.html
Hope this helps,
Maarten
--- Stata List <[email protected]> wrote:
> Dear All,
>
> I would like to estimate the relationship between parents and
> children's years of education:
>
> EduChild=a+b*EduParent
>
> I only have data for children up to 19 years old, so some of them
> will
> go on studying, so the b coefficient will be biased (at least it will
> be if I want to infer the population's beta from this subset of the
> population). The dependent variable is thus "censored" for some
> observations - for those I know that are still at school when they
> are
> observed.
>
> Is there a way to estimate some form of Tobit model in Stata, where I
> can specify different censoring points for each observation and
> obtain
> the parameter b? Is it more convenient to attempt the estimation of b
> by OLS?
>
> Thanks in advance
>
> AC
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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