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RE: st: Est. of variance for non-linear comb. of parameters (Krinsky-Robb)


From   Jesper Kjr Hansen <kjaer.hansen@oncable.dk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Est. of variance for non-linear comb. of parameters (Krinsky-Robb)
Date   Tue, 18 Jul 2006 14:16:42 +0200

Arne Risa Hole <ah522@york.ac.uk> wrote:
> Hi Jesper
> 
> You can calculate the bootstrap variances (and CIs) of your WTP
> measures by runnning the following command:
> 
> bootstrap (-_b[H1]/_b[H5]) (-_b[H2]/_b[H5]) (-_b[H3_varm]/_b[H5]) ///
> (-_b[H3_kold]/_b[H5]) (-_b[H4]/_b[H5]) (-_b[_cons]/_b[H5]), ///
> reps(1000): xtlogit  choice H1 H2 H3_varm H3_kold H4 H5, re
> 
> I have written a Stata module that calculates Krinsky Robb CIs for WTP
> measures which should be straightforward to tweak into calculating the
> variance as well. I will send this to you off-list.
> 
> Best wishes
> Arne
> 

Arne had exactly what I was looking for, thanks a lot!

-- J. K. Hansen

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