a comment on “supply chain dea: production possibility set and performance evaluation model

نویسندگان

g.r. jahanshahloo

department of mathematics, science and research branch, islamic azad university,tehran 14515-775, iran m. rostamy-malkhalifeh

department of mathematics, science and research branch, islamic azad university,tehran 14515-775, iran s. izadi-boroumand

department of mathematics, science and research branch, islamic azad university,tehran 14515-775, iran

چکیده

in a recent paper in this journal, yang et al. [feng yang, dexiang wu,liang liang, gongbing bi & desheng dash wu (2009), supply chaindea:production possibility set and performance evaluation model] definedtwo types of supply chain production possibility set which were proved to beequivalent to each other. they also proposed a new model for evaluatingsupply chains. there are, however, some shortcomings in their paper. in thecurrent paper, we correct the model, the theorems, and their proofs.

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