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st: Re: low values of sigma v in frontier analysis


From   "Rao, James" <James.Rao@agr.uni-goettingen.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: low values of sigma v in frontier analysis
Date   Fri, 26 Feb 2010 13:29:44 +0100

Dear Statalisters,

 

I am running a frontier (stochastic production frontier) model for technical
efficiency and I seem to be getting an extremely low value for "sigma v"
which implies no stochastic error. Anyone with an idea why this could be so? 

 

 

=============================================================================
==

Rao E.O. James (Msc)

Research Associate/PhD Student

 

Department of Agricultural Economics and Rural Development

Georg-August University of Göttingen

Platz der Gottinger Sieben 5

37073 Göttingen, Germany.

 

Tell:+49-551-394443 (Office)

E-mail: jimrao2@yahoo.co.uk <mailto:jimrao2@yahoo.co.uk> ;  

          James.Rao@agr.uni-goettingen.de

 

Courage is not the absence of fear but the triumph over it ... so fear not to
fear ... but strive to overcome fear!

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