Paper Information

Journal:   INTERNATIONAL JOURNAL OF DATA ENVELOPMENT ANALYSIS   spring 2017 , Volume 5 , Number 2 (18); Page(s) 1243 To 1256.
 
Paper: 

Interval Malmquist Productivity Index in DEA

 
 
Author(s):  AGHAYI N.*, Maleki B.H.
 
* DEPARTMENT OF MATHEMATICS, ARDABIL AZAD UNIVERSITY, ARDABIL, IRAN
 
Abstract: 
Data envelopment analysis is a method for evaluating the relative efficiency of a collection of decision making units. The DEA classic models calculate each unit’ s efficiency in the best condition, meaning that finds a weight that the DMU is at its maximum efficiency. In this paper, utilizing the directional distance function model in the presence of undesirable outputs, the efficiency of each unit has been calculated in the best and worst condition and an efficiency interval for each DMU is designated and then with aid from these efficiency interval, we present an interval for each unit with a proportionate Malmquist productivity index, that these intervals indicate the progression or regression of each DMU.
 
Keyword(s): Interval data,Directional distance function,Undesirable output,Malmquist productivity index
 
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