TY - JOUR
T1 - How to assess sustainability of suppliers in volume discount context? A new data envelopment analysis approach
AU - Izadikhah, Mohammad
AU - Farzipoor Saen, Reza
AU - Ahmadi, Kourosh
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/3/1
Y1 - 2017/3/1
N2 - In this paper, we reformulate conventional data envelopment analysis (DEA) models and propose a novel method for evaluating sustainability of suppliers in the presence of interval volume discount offers, fuzzy data, and ordinal data. To this end, we convert all data into interval data. To convert fuzzy data into interval data, we use nearest weighted interval approximation by applying weighting function and we convert each ordinal data into interval one. Then, using enhanced Russell model, interval efficiencies are obtained. After that, using preference degree approach, we rank suppliers. Finally, a case study is presented to illustrate our proposed approach.
AB - In this paper, we reformulate conventional data envelopment analysis (DEA) models and propose a novel method for evaluating sustainability of suppliers in the presence of interval volume discount offers, fuzzy data, and ordinal data. To this end, we convert all data into interval data. To convert fuzzy data into interval data, we use nearest weighted interval approximation by applying weighting function and we convert each ordinal data into interval one. Then, using enhanced Russell model, interval efficiencies are obtained. After that, using preference degree approach, we rank suppliers. Finally, a case study is presented to illustrate our proposed approach.
KW - Data envelopment analysis (DEA)
KW - Fuzzy data
KW - Interval data
KW - Nearest weighted interval approximation
KW - Ordinal data
KW - Sustainable supply chain management
KW - Volume discount
UR - http://www.scopus.com/inward/record.url?scp=85009062920&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85009062920&partnerID=8YFLogxK
U2 - 10.1016/j.trd.2016.11.030
DO - 10.1016/j.trd.2016.11.030
M3 - Article
AN - SCOPUS:85009062920
SN - 1361-9209
VL - 51
SP - 102
EP - 121
JO - Transportation Research Part D: Transport and Environment
JF - Transportation Research Part D: Transport and Environment
ER -