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Re: st: stochastic frontier test distribution

From   Scott Merryman <>
Subject   Re: st: stochastic frontier test distribution
Date   Wed, 10 Nov 2010 12:26:05 -0600

If you have access to the Journal of Econometrics take a look at:

Lung-Fei Lee, A test for distributional assumptions for the stochastic
frontier functions, Journal of Econometrics, Volume 22, Issue 3,
August 1983, Pages 245-267

Some asymptotic tests for testing distributional assumptions, namely,
the half-normal and truncated normal distributions for the stochastic
frontier functions have been proposed. The tests are Lagrangean
multiplier tests based on the Pearson family of truncated
distributions. The statistics can be easily computed. Simple
interpretations of the statistics and two empirical examples are

Do distributional assumptions matter?  See Lovell and Kumbhakar (2000)
"Stochastic Frontier Analysis"  (page 90) and


On Tue, Nov 9, 2010 at 8:59 AM, Rossana Cima <> wrote:
> Dear Statalisters,
> I want to estimate a stochastic production frontier and I would like
> to test the half normal distribution against alternative distributions
> (in particular the exponential distribution).
> Is there a practical procedure for doing this and what steps should I follow?
> Thank you in advance
> Rosa
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