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Investigation of a consignment stock and a traditional inventory policy in a three-level supply chain system with multiple-suppliers and multiple-buyers
بررسی سهام انبار و یک سیاست انبوه سنتی در سه سطح سیستم زنجیره تامین با چند تامین کننده و چند خریداران-2017 This paper develops and investigates four coordination scenarios for a three-level supply
chain system consisting of multiple suppliers, a vendor, and multiple buyers. One sce
nario considers consignment stock (CS) agreements between the adjacent levels (suppliers
vendor; vendor-buyers) in the supply chain. Another one considers traditional coordination
policies (TP). The two remaining scenarios are combinations of the two; i.e., CS-TP and
TP-CS. The scenarios also consider trade credit where an upstream player offers a delay
in-payment to a downstream player. A scheme of equal-sized payments at equal intervals
is adopted. Numerical examples are provided to compare between the scenarios and to
study the effects of different cases of delay-in-payments on the total profit of the sys
tem. A sensitivity analysis is performed to test the effects of varying some parameters on
the system’s profit. The results showed that a combined coordination policy and paying
post the due date return the highest system profit. The differences in the profits for the
four scenarios were found to be insignificant under some conditions. This finding may give
managers the flexibility to choose the one that is practical and serves its business better.
Keywords: Three-level supply chain | Inventory management | Consignment stock policy | Traditional policy |
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