In Data Envelopment Analysis (DEA), a variety of approaches have been used in the context single-stage and basic serial two-stage systems to attain fairness evaluation decision-making units (DMUs). Little work, however, has done address this challenge generalised structure featuring additional inputs second stage proportion first-stage outputs as final outputs. paper, we argue that context, is ...

This paper addresses a class of two-stage robust optimization models with an exponential number scenarios given implicitly. We apply Dantzig–Wolfe decomposition to exploit the structure these and show that original problem reduces single-stage problem. propose Benders algorithm for reformulated also develop heuristic dualizes linear programming relaxation inner maximization in model iteratively...

Many studies have been conducted to determine the efficiency of two-stage network structures in the recent years. The two-stage network with additional inputs to the second stage, in which the second stage is independent of the first stage are one of these structures. Thus, there is a need for a model capable of calculating the efficiency of two-stage structures as well as efficiency of each st...

This paper presents a new robust two-stage Data Envelopment Analysis (DEA) for efficiency evaluation of the electricity power production and distribution companies. DEA has been widely used for benchmarking the electricity companies. Traditional studies in DEA consider systems as a whole when measuring the efficiency, ignoring the operation of individual processes within a system. To tackle thi...