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2018 ; 13
(3
): e0194050
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Flexibility evaluation of multiechelon supply chains
#MMPMID29584755
Almeida JFF
; Conceição SV
; Pinto LR
; de Camargo RS
; Júnior GM
PLoS One
2018[]; 13
(3
): e0194050
PMID29584755
show ga
Multiechelon supply chains are complex logistics systems that require flexibility
and coordination at a tactical level to cope with environmental uncertainties in
an efficient and effective manner. To cope with these challenges, mathematical
programming models are developed to evaluate supply chain flexibility. However,
under uncertainty, supply chain models become complex and the scope of
flexibility analysis is generally reduced. This paper presents a unified approach
that can evaluate the flexibility of a four-echelon supply chain via a robust
stochastic programming model. The model simultaneously considers the plans of
multiple business divisions such as marketing, logistics, manufacturing, and
procurement, whose goals are often conflicting. A numerical example with
deterministic parameters is presented to introduce the analysis, and then, the
model stochastic parameters are considered to evaluate flexibility. The results
of the analysis on supply, manufacturing, and distribution flexibility are
presented. Tradeoff analysis of demand variability and service levels is also
carried out. The proposed approach facilitates the adoption of different
management styles, thus improving supply chain resilience. The model can be
extended to contexts pertaining to supply chain disruptions; for example, the
model can be used to explore operation strategies when subtle events disrupt
supply, manufacturing, or distribution.