SELECTING CHEBYSHEV'S NORM AS A SECONDARY GOAL FOR RANKING IN THE PRESENCE OF SYMMETRY FACTOR IN DEA

In data envelopment analysis (DEA), the cross-efficiency evaluation method describes a cross-efficiency matrix in which the units are self and peer evaluated. The problem that may reduce the usage of the cross-efficiency evaluation method is that it cannot be unique for the cross-efficiency of scores, because of the alternate optima. In this way it stands to define logically secondary goals and introduce it to cross-efficiency appraisement. Here we propose the symmetric weight assignment technique (SWAT) which does not influence feasibility and rewards decision making units (DMUs)and then we conclude a symmetric selection of weights. At the end a numerical problem is investigated by our proposed method and its results are collated with former methods.