Dear all,
Is it valid to run -biprobit- on a model described by the following:
y = f(x, a)
x = f(y, a, w)
In other words, the dependent variable of the first equation is among
the independent variables of the second equation, and vice-versa.
The results of the command gives exactly the same P>|z|'s for the common
arguments (i.e., a), with the coefficients having simply the opposite
signs (i.e., same absolute value). Variables x and y have exactly the
same coefficient and P>|z|. Standard errors are the same everywhere.
Much thanks.
--
Paloys
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