st: re: marginal effects after ivtobit

[Kit Baum <baum@bc.edu>]

<>
Martin said

Kit, maybe I misunderstand the word "deprecated", but are you implying  
that
users should not use the official -dprobit-? I cannot find anything in  
its
help file that would discourage its use. In the case of the
user-written -dtobit-, the author has not yet withdrawn the command,  
which
is a different story...


Indeed, I was suggesting that. There was a discussion at last week's  
FNASUG in which someone complained that -dprobit- could not do this or  
that. It is essentially an orphaned command; when StataCorp thought  
about creating one such command for every limited dep var estimation  
command, they must have figured out that it would be easier to write a  
single -mfx- and set it up to deal with every estimation command. - 
dprobit- predates that and is still with us because Stata does not  
usually drop existing commands. But if you want the full set of  
capabilities available to you, use -probit- and -mfx-. Limitations of - 
dprobit- include vce options, allowed prefix commands, allowed weight  
types, etc.

Personally, in my research I use -probit- followed by -mfx-. I throw  
away the -probit- results and put the -mfx- results in a table (which  
cannot be done with -est table-, btw, but is handled nicely with - 
estout- from Ben Jann using the -marg- option).

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


*
*   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/