In this paper an approach in data envelopment analysis dealing with evaluation of non – zero
slacks was propounded. This approach intends that weight of inefficient and weak efficient points that
have been evaluated as zero weight, be considered as positive weight, and also in this approach, the
pareto efficiency evaluates the picture of this point. In this approach positive weights in the inefficient
and weak efficient points are appointed based on the decision maker’s opinions and wants, and
weights with help of analytical hierarchy process (AHP) are calculated and added to the model under
studying, and gain a model with actions of weighted border.
Keywords Data Envelopment Analysis, Zero Weight, Analytical Hierarchy Process , Weak Efficient,
Inefficient.
Hosseinzadeh Lotfi, Ahanchi, M.. Zero Weights in Weak Efficient and Inefficient Points with AHP. International Journal of Applied Operational Research 2012; 2 (1) URL: http://ijorlu.liau.ac.ir/article-1-104-en.html