scholarly journals Estimation of Cost Efficiency in Non-parametric Frontier Models

2002 ◽  
Vol 34 (2) ◽  
pp. 89-108 ◽  
Author(s):  
ANDREW C. WORTHINGTON ◽  
EMILY V. HURLEY

2008 ◽  
Vol 23 (1) ◽  
pp. 53-64 ◽  
Author(s):  
Bruno de Borger ◽  
Kristiaan Kerstens ◽  
Matthias Staat

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