st: Discrete endogenous variables in 2SLS?

[Jeffrey Roberts <jeffrey.a.roberts@gmail.com>]

Hi,

Can XTIVREG be used in the case of discrete endogenous variables in some way?

I have a problem such as:

Y  = f(a,b,c)
a = f(z,b,c)

where 'a' is a dichotomy. For 'z' to be an instrument for 'a' then
there is a co-linearity problem.

Thanks
Jeff
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