Objective Quantitative Evaluation of Suppliers under the Environmental Collaboration of Green Supply Chain Management - Based on the Super Efficiency DEA Model

The concept of green supply chain management (GSCM) is to integrate environmental thinking into supply chain management. As such, GSCM is important in influencing the total environment impact of any organizations involved in supply chain activities. More importantly, GSCM can contribute to ecological sustainability performance enhancement. In the evaluation system of suppliers, the basic process of supplier selection under the environmental collaboration of green supply chain is put forward from the perspective of environmental impact. This paper proposes an objective quantitative evaluation of suppliers (OQES) based on super efficiency DEA in green supply chain. Meanwhile, a mathematical model is built to comprehensively analyze the evaluation mechanism and malicious attacks. Finally, the experimental results show that: Change of the quantity index of super efficiency DEA model will make the non-malware error gradually attenuate. It can also help enterprises to choose the right suppliers objectively and create a competitive green supply chain system under the new environment of green economy, which is of great practical significance. The research findings will also be important for manufacturing companies in developing environmental collaboration with their suppliers in order to achieve sustainability performance.