Small-sample properties of ML, COLS, and DEA estimators of frontier models in the presence of heteroscedasticity

Author： Bojanic A.N.   Caudill S.B.   Ford J.M.  

Publisher： Elsevier

ISSN： 0377-2217

Source： European Journal of Operational Research, Vol.108, Iss.1, 1998-07, pp. : 140-148

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