engleski

Multi-criteria decision making in supply chain management based on inventory levels, environmental impact and costs

Supply chains in a global business environment operate within conflicting aspects. This research analyses correlation and interdependencies between inventory levels, costs and greenhouse gas emissions from replenishments within supply chain echelon. A simulation-based inventory optimisation con-ducted on 4000 experiments assumes the conditions of stochastic market demand, (R, s, S) inventory policy, target fill rates, predefined lead times and closing days constraint. It verifies the influence of operational and logistic decisions such as frequency of inventory replenishments or vehicle size selec-tion on management objectives. Besides determining the best individual re-sults for the objectives of minimum inventory levels, total costs and emis-sions, the overall best solutions in terms of three decision models – uniformly valued, cost-oriented and environmentally responsible model, were deter-mined using multi- criteria decision-making methodology. These models are relevant for both scientific and practical managerial settings due to the evi-dent lack of research simultaneously analysing inventory, cost and environ-mental performances of (R, s, S) policy. This study confirms that it is crucial in practice to perform an extensive simulation experiment analysis for each product to be able to determine its optimal settings. Inventory management software should have a direct influence on operational decisions in order to reduce costs or emissions within the same fill rate.

Green supply chain ; Multi-criteria decision making ; Environmental impact ; Costs ; Inventory levels

nije evidentirano