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Re: st: missing standard error of the constant term in ivprobit model
From
Nick Cox <njcoxstata@gmail.com>
To
statalist@hsphsun2.harvard.edu
Subject
Re: st: missing standard error of the constant term in ivprobit model
Date
Mon, 16 May 2011 01:34:35 +0100
On this information: Your model is too complicated. Simplify until
this doesn't happen.
Look at the correlation structure of your predictors.
But the major point is that this is too little information to allow a
better answer. No output, no context, no statement of why variables
are included in the model.
Nick
On Mon, May 16, 2011 at 1:15 AM, xueliansharon <xuelianstata@gmail.com> wrote:
> Dear all,
>
> I estimated an ivprobit model with five endogenous variables, I use 12
> instruments to address the endogeneity, but I always get missing standard
> error in the constant term, no matter which convergence technique (bfgs,
> dfp, etc) I use. Does anybody know the reason and solution to such missing
> standard error problem?
>
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