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Stochastic cost efficiency evaluation of a supply chain
(Işık University Press, 2016-02-02)
The main goal of the paper is a consideration of cost efficiency evaluation models related to some supply chain when dealing with imprecise data. Data envelopment analysis (DEA) method is a non-parametric mathematical ...
Estimating returns to scale using non-radial dea models
(Işık University Press, 2018)
The concept of returns to scale (RTS) is defined as the ratio of the proportionate changes in outputs over the proportionate changes in inputs. By considering the following two facts the current paper develops some non-radial ...