Designing strategic model of waste reduction in the supply chain : systems dynamics approach

Subject Areas : Strategic Management Researches

Alireza Agha gholizade sayar ^{1 *} , Majid Ghaderi rahghi ² , Kamran Rahimi ³ , Mehdi Izadyar ⁴

1 - دکتری مدیریت صنعتی، گروه علوم انسانی، دانشگاه فنی و حرفه ای، تهران، ایران
2 - Assistant Professor in Industrial Management, Department of Humanities, Technical and Vocational University, Tehran, Iran.
3 - PhD in Development Economics, Department of Humanities, Technical and Vocational University, Tehran, Iran.
4 - PhD in Industrial Management, Science and Research Branch, Islamic Azad University, Tehran, Iran.

Received: 2021-11-27 Accepted : 2021-12-24 Published : 2023-06-20

Keywords: Simulation, Knowledge management, Optimization, System Dynamics,

Abstract :

In today's world, the economic and social development of societies, due to the scarcity of resources, is highly dependent on the planned and optimal use of resources and facilities. The increasing trend of waste in the supply chain is one of the main challenges of most countries, especially developing countries. Therefore, the optimal use of resources and reducing the amount of waste play a key role in improving the efficiency of organizations. Therefore, in this study, we seek to provide a dynamic strategic model for reducing waste in the supply chain of petroleum products in the framework of systems thinking. This research has been studied in a petrochemical company for a period of 20 years. In the proposed model, using the opinions of experts, first 26 knowledge management variables are refined by fuzzy cognitive mapping methods and the importance of each of them is determined, then using the concepts of systems dynamics, their effect on supply chain variables in the form of cause chart. Finally, according to the flow diagram and the proposed scenarios, at the end of the study period, the amount of waste is reduced by 45%, which leads to a reduction in system costs.

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