The network data envelopment analysis models for non-homogenous decision making units based on the sun network structure

摘要: This paper seeks to propose a network data envelopment analysis (DEA) framework for of heterogeneous systems. The introduces the dummy connector so that every structure can be transformed into sun structure. In his case, allows heterogeneity decision making units (DMUs) in terms their inner Based on structure, static and dynamic DEA models are established. Thus, DMUs with different structures evaluated according models. efficiency each sub-unit, period sub-unit also obtained. Two simulated examples presented using