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Re: st: svy frontier
I am new to Stata and I am not familiar with frontier.
However, I am using survey data and I ran into a
similar problem. Stata does not have svy commands for
zero-inflated poisson and zero-inflated negative
binomial regression models.
Someone recommended me to run these models using
iweights and then use suest .,svy command to get the
zip absdays age00 gender2 ethrace2 ethrace3 ethrace4
[iweight=perwt00f ], inflate(age00 gender2 ethrace2
ethrace3 ethrace4 )exposure(refper) score(PO*)
suest ., svy
Hope this is helpful
--- Jose Valderrama <email@example.com> wrote:
> Hi everyone
> I am trying to run frontier in a sample of cotton
> producers. As far as
> I know the frontier does not include any survey
> design in its process.
> Does anybody know if there is any alternative in
> order to include the
> survey design in this kind of estimations? I was
> trying to weight the
> sample using the irregular weights, but the results
> are a bit weird, in
> fact a possible overestimation of the technical
> efficiency of cotton
> producers... Any suggestions?
> Thanks in advance
> * For searches and help try:
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
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