DEA cross-efficiency evaluation considering undesirable output and ranking priority: a case study of eco-efficiency analysis of coal-fired power plants
The undesirable output is considered in DEA cross-efficiency evaluation. An equitable model is given for measuring efficiency. The ranking preference of each DMU is regarded as the secondary goal. An aggressive model is given to guarantee the uniqueness of the optimal solution. A case study of eco-efficiency analysis of coal-fired power plants is presented.