A Modified-Range Directional Measure for Assessing the Sustainability of Suppliers by DEA/UTASTAR

Sustainability in the supply chain means considering environmental, social, and economic practices. Conventional data envelopment analysis (DEA) models deal with desirable, discretionary, nonnegative data. However, there might be undesirable outputs, nondiscretionary factors, negative On other hand, some criteria can considered as outputs inputs. These factors are named dual-role criteria. The objective of this paper is to develop a non-radial DEA model for dealing presence undesirable, non-discretionary, weight restrictions context. ordinal regression method, UTASTAR, performed define priorities terms capabilities proposed method compared methods. A case study presented which best sustainable suppliers SAPCO selected. To check importance variables, two extra cases considered.