Model for Dealing with Dual-role Factors in Dea: Extensions
نویسندگان
چکیده
This paper addresses the potential uncertainty in Cook (2007)’s methodology to classify dual-role factors by introducing a useful property. In addition, if the assumption that dual-role factors can be clearly classified into either inputs or outputs, which underlies Cook (2007), doesn't hold, an extension of DEA model incorporating dual-role factors is proposed in this paper. Then a theorem is proved to formulate the relation between the proposed model and the traditional CCR model. Finally a numerical example is illustrated to offer insights into the new model.
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