Coordination efficiency for general two-stage network system

Two-stage network data envelopment analysis (DEA) is widely used to evaluate efficiency of different organizations with multiple operations processes or hierarchical structures. Although existing two-stage DEA assumes systems resolve the inherent conflicts between two stages, coordination effect stages usually ignored. Recently, relation traditional “black box” has been studied from perspective system coordination. A was defined and measured by a DEA-based approach based on simple systems. In this paper, we propose an extended for measuring general The paper shows that multiplier approaches equivalent each other under both constant returns scale (CRS) variable (VRS) assumptions. proposed verified via numerical examples finally.