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Re: st: mfx with biprobit


From   David K Evans <dkevans@fas.harvard.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: mfx with biprobit
Date   Thu, 18 Nov 2004 20:40:25 -0500 (EST)

The answer to your first question is definitely Yes. Just use standard mfx
syntax after the biprobit command.

I don't know on the second. I'd be surprised if there were a way to see
the effect of X2 on Y1 through Y2 and differentiate that from the effect
of X3 on Y1 through Y2.
Dave

------------------------------------------------------------------------

PhD student, Harvard Economics Department
Phone: (O) 617-495-5634, (H) 617 - 493 - 1536
Address: Currier Mail Center #554, Cambridge, MA 02138

------------------------------------------------------------------------

On Thu, 18 Nov 2004, Nestor Gandelman wrote:

> Dear statalisters:
>
> I'm estimating a bivarite probit model using the biprobit command.
> My model is recursive:
> Y1 = X1 + X2 +Y2
> Y2 = X2 + X3
>
> and I want to compute the marginal effects of Pr(Y1=1) after that using the mfx
> command.
>
> Can I do this with mfx?
> Is ther a way to divide the direct effect from the indirect effect (X2 afecting
> Y1 directly and trough Y2)?
>
> I'll appreciate any help,
>
>                      Nestor
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