A Grey Data Envelopment Analysis Model
نویسنده
چکیده
In this paper, grey system theory and DEA are combined to establish a grey DEA model. In traditional DEA model, Input and output values of decision-making groups are all real numbers and real variables. They are replaced by grey numbers and grey variables in grey DEA model respectively. Using positioning solution method of grey linear programming, we prove the necessary condition for grey effective of decision making unit. As a practical application, we evaluate the performance of eight listed companies in Qingdao City, Shandong Province, China. Listed companies are seen as decision-making unit, we analyze DEA effective of their performance.
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