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Rike said
for the tobit command, there seems to be a code available "dtobit"
that calculates marginal effects in stata. I'm wondering if there is a
comparable command for ivtobit available.
The -dtobit- (user-written) and -dprobit- (official) commands are  
deprecated in favor of the standard post-estimation suite, which  
includes -mfx- for practically all estimation commands. If you -help  
ivtobit postestimation- you will see that -mfx-, -predict-, - 
predictnl- are all available.
Kit Baum, Boston College Economics and DIW Berlin
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html
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