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st: Stochastic frontier models to estimate multiple-output production functions
From
Laura Di Giorgio <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: Stochastic frontier models to estimate multiple-output production functions
Date
Thu, 17 Oct 2013 17:29:40 +0000
Dear Statalist,
I am interested in applying stochastic frontier models (with xtfrontier /sfpanel, or in the cross sectional setting) to estimate a multi-output multi-inputs distance function for hospitals production. I tried to use the packages mentioned, but when I predict the inefficiencies, I get results that do not make sense (values bigger than 1).
I am wondering if the standard packages can be used to estimate distance functions and whether any adjustment is need for distance functions.
Thank you very much!
Laura Di Giorgio
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