st: mfx standard errors

[Silvia Mendolia <silvia.mendolia@student.unsw.edu.au>]

Hello everybody,

I was wondering if any of you have an idea of the method used to 
calculate standard error of the marginal effect in the mfx command.
I am asking this, because in Stata 7 the mfx command just showed the 
standard error of the coefficients. Stata 9 does not do that, but I was 
wondering how standard error are calculated (ie bootstrat or other 
methods...)

Thank you very much,

Silvia

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