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Multi-objective optimization modelling of sustainable green supply chain in inventory and production management
مدلسازی چند هدفه بهینه سازی زنجیره تأمین سبز پایدار در مدیریت موجودی و تولید-2021 The ever increasing pressure to conserve the environment from global warming cannot
be overemphasized. Emission from the inventory and production process contributes immensely
to global warming and hence, the need to device a sustainable green inventory by the operational
managers. In this paper, a multi-item multi-objective inventory model with back-ordered quantity
incorporating green investment in order to save the environment is proposed. The model is formulated as a multi-objective fractional programming problem with four objectives: maximizing profit
ratio to total back-ordered quantity, minimizing the holding cost in the system, minimizing total
waste produced by the inventory system per cycle and minimizing the total penalty cost due to green
investment. The constraints are included with budget limitation, space restrictions, a constraint on
cost of ordering each item, environmental waste disposal restriction, cost of pollution control, electricity consumption cost during production and cost of greenhouse gas emission in the production
process. The model effectiveness is illustrated numerically, and the solution obtained to give a useful
suggestion to the decision-markers in the manufacturing sectors.
KEYWORDS: Multi-objective fractional programming | Fuzzy goal programming | Sustainable green supply chain | Inventory and production management |
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