. search dtobit 
points to a detailed discussion: 
STB-56  sg144 . . . . . . . . . . . . . .  Marginal effects of the tobit model
        (help dtobit if installed)  . . . . . . . . . . . . . . . . .  R. Cong
        7/00    pp.27--34; STB Reprints Vol 10, pp.189--197
        provides four forms of marginal effects for a tobit model
        and discusses the McDonald and Moffitt decomposition
Experts may be able to tell you what this can do that can't 
be done using -mfx- after -tobit-. 
Nick 
[email protected] 
[email protected]
> 
> I'm running a tobit with several dummies.
> I calculated the marginal effect in the average probabilities 
> and in the
> average characteristics and the results are quite different 
> from the ones
> I obtain after the command 'dtobit' in Stata.
> I couldn't find info on the way it calculates and I was 
> wondering if any
> of you have an idea about this.
> 
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