Optimal economic order quantity for buyer–distributor–vendor supply chain with backlogging derived without derivatives

Jinn-Tsair Teng, Leopoldo Cárdenas-Barrón, Kuo-Ren Lou and Hui Wee

International Journal of Systems Science, 2013, vol. 44, issue 5, 986-994

Abstract: In this article, we first complement an inappropriate mathematical error on the total cost in the previously published paper by Chung and Wee [2007, ‘Optimal the Economic Lot Size of a Three-stage Supply Chain With Backlogging Derived Without Derivatives’, European Journal of Operational Research, 183, 933–943] related to buyer–distributor–vendor three-stage supply chain with backlogging derived without derivatives. Then, an arithmetic–geometric inequality method is proposed not only to simplify the algebraic method of completing prefect squares, but also to complement their shortcomings. In addition, we provide a closed-form solution to integral number of deliveries for the distributor and the vendor without using complex derivatives. Furthermore, our method can solve many cases in which their method cannot, because they did not consider that a squared root of a negative number does not exist. Finally, we use some numerical examples to show that our proposed optimal solution is cheaper to operate than theirs.

Date: 2013
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DOI: 10.1080/00207721.2011.652226

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