st: RE: Patrick Royston's ice and micombine and ivreg

["roy wada" <roywada@hotmail.com>]

Thanks, Nick and Patrick. Let's hope the referees will buy it.

Roy

> Nick n.j.cox@durham.ac.uk
>
> Patrick Royston:
>
> Curiously enough I had some correspondence some months ago about
> -ivreg-. The latest version of -micombine- (version 1.1.1, 28nov2005)
> distinguishes between supported and unsupported commands, and gives a
> warning message in the case of an unsupported command being run. -ivreg-
> is one of the latter. As Roy Wada implies, in such cases -micombine-
> blindly applies Rubin's rules of combination of parameter estimates. The
> user must take responsibility for the validity or otherwise of the
> results. However in all such cases I have seen, the results look very
> reasonable.

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