RE: st: Tobit interaction effect

[Ebru Ozturk <ebru_0512@hotmail.com>]

I'm not interested in latent variable. So for the rest, what should I do? or Where can I learn to measure the interactions?
 
Thanks, Ebru


----------------------------------------
> Date: Wed, 9 May 2012 12:32:17 +0200
> Subject: Re: st: Tobit interaction effect
> From: maartenlbuis@gmail.com
> To: statalist@hsphsun2.harvard.edu
>
> On Wed, May 9, 2012 at 12:09 PM, Ebru Ozturk wrote:
> > But, it has been discussed that there is no Stata code for estimating interaction effects in Tobit by Norton, Wang & Ai, 2004. So, how can we just add them and interpret the results?
>
> They were wrong, as long as you interpret your results in terms of the
> latent outcome. This is what I meant when I said:
>
> "The resulting model is easy to interpret in terms of the expected
> latent variable, but gets a lot more complicated for other outcomes
> like the probability of being censored, or the expected outcome
> conditional on not being censored."
>
> The logic is that a Tobit model is just a linear model terms of the
> latent variable, so none of the problems discussed by Norton and
> colleagues apply to that interpretation of the Tobit model. It is
> non-linear in terms of the probability of being censored or the
> expected outcome condition on not being censored, etc. If those are
> the outcomes of interest you will have to do more work.
>
> -- Maarten
>
> --------------------------
> Maarten L. Buis
> Institut fuer Soziologie
> Universitaet Tuebingen
> Wilhelmstrasse 36
> 72074 Tuebingen
> Germany
>
>
> http://www.maartenbuis.nl
> --------------------------
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