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# Re: st: Marginal effects of interactions in Tobit

 From William Buchanan To "statalist@hsphsun2.harvard.edu" Subject Re: st: Marginal effects of interactions in Tobit Date Tue, 25 Dec 2012 10:37:32 -0700

```Hi Ebru,

As mentioned explicitly in the Statalist FAQ, if you are using any version of Stata other than the most current version you are asked to explicitly state this. If everyone is working under the assumption that you are using Stata 12.1 (the current version of Stata), they will provide you with advice accordingly. When you don't state this up front, you get less valuable feedback and cause respondents to use their time to provide you with an answer to a different question from what you have.

HTH,
Billy

Sent from my iPhone

On Dec 25, 2012, at 10:00, Ebru Ozturk <ebru_0512@hotmail.com> wrote:

> Thank you for your response. But I need it for Stata 10.
>
> Kind regards
> Ebru
>
> ----------------------------------------
>> From: kit.baum@bc.edu
>> To: statalist@hsphsun2.harvard.edu
>> Subject: re: st: Marginal effects of interactions in Tobit
>> Date: Mon, 24 Dec 2012 17:08:01 +0000
>>
>> <>
>> Ebru said
>>
>> I wanted to obtain marginal effects of interaction terms in Tobit regression. Altough there are some examples given by Stata FAQ page http://www.stata.com/support/faqs/statistics/marginal-effects-after-interactions/ there is no example for Tobit estimation. I am particularly interested in marginal effects of quadratic term in Tobit? Can you explain how to do it for Tobit?
>>
>> sysuse auto,clear
>> generate wgt=weight/1000
>> tobit mpg c.wgt##c.wgt, ll(17)
>> margins, dydx(wgt)
>> margins, dydx(wgt) at(wgt=(1.75(0.5)4.75)) vsquish
>> marginsplot
>>
>> Kit
>>
>>
>> Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html
>> An Introduction to Stata Programming | http://www.stata-press.com/books/isp.html
>> An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html
>>
>>
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```