improving supply chain collaborations and performance of inefficient supply chain

modern manufacturing enterprises are required to collaborate by their business partners through their business process operations such as design, manufacture, distribution, and aftersales services. and furthermore performance evaluation is of great importance for effective supply chain man agement. therefore, dea can help companies to remove some of the in efficiencies in operational processes in order to become more effective. the current paper develops one approach for determining the dea projections for inefficient supply chains. meanwhile this approach aims at providing an easy, efficient and more practical approach based on the performance evaluation for the multi-member supply chain. and ultimately, this model is illustrated by an numerical example of chinese commercial bank, and case study application to provide of machine-making supply chain.