Slacks-Based Measure of Efficiency
There are two types of models in DEA: radial and nonradial. Radial models are represented by the CCR (Charnes–Cooper–Rhodes) model. Basically, they deal with proportional changes of inputs or outputs. On the other hand, nonradial models, e.g., the slacks-based measure of efficiency (SBM) model, handle input or output slacks directly, and do not assume proportional changes of inputs or outputs. In this chapter, we introduce the SBM model and its extensions.
KeywordsSlacks-based measure Weighted-SBM Super-SBM Epsilon-based measure
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