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Original Articles

Simultaneous testing of regression disturbances for heteroscedasticity and non-normality

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Pages 307-312 | Published online: 28 Jul 2006
 

Abstract

Drawing on the procedures developed for estimating stochastic frontier production functions, the objective of this paper is to derive a practical two-directional test for both heteroscedasticity and non-normality, when the structure of heteroscedastic-ity is not known to the researchers.

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