produced and used next to iron, aluminum, and copper. In this study, DEA (data envelopment analysis) was applied to measure the … the variable returns to scale (VRS) models, and the slack-based measure (SBM) were used for the analysis. As a result of … the efficiency analysis, there were three efficient zinc smelters in the CRS model, 14 in the VRS model and 14 in the SBM …

Holod and Lewis (2011), our paper overcomes some of the potential limitations of the DEA methodology by applying the … shareholders. Finally, the application of SBM Variation III finds several globally inefficient but locally efficient companies …

In DEA, there are typically two schemes for measuring efficiency of DMUs; radial and non-radial. Radial models assume … efficiency measure, called slacks-based measure (SBM). In this paper, we point out shortcomings of the SBM and propose 4 variants … of the SBM model. The original SBM model evaluates efficiency of DMUs referring to the furthest frontier point within a …