Designing a Non-Oriented NDEA for Performance Evaluation

Performance evaluation for each organization is necessary to plan and control. Banks are part of public service and their performance influences peoples life quality, and their performance evaluation is mostly done with DEA models. As other organizations banks include a two-staged network structure. The traditional DEA models are inefficient for evaluation because of not paying attention to internal structure and black-box perspective and cant determine the source of inefficiency well, so in this research first an oriented NDEA model and then a non-oriented model based on Russell idea were developed. In next stage, the presented non-oriented model was used in an applied and experimented study for performance evaluation of 30 banks two-staged structure including deposit-collecting stage and profit-making stage. Also, the risk of banks activities was considered with regard to delayed payments as undesirable output. The result of stages and network efficiency show the research model gives a better evaluation of banks performance. The presented models can be developed to other structures and applications.