Simulation of Lean Principles Impact in a Multi-Product Supply Chain

Authors: M. Rossini, A. Portioli Studacher

Abstract:

The market competition is moving from the single firm to the whole supply chain because of increasing competition and growing need for operational efficiencies and customer orientation. Supply chain management allows companies to look beyond their organizational boundaries to develop and leverage resources and capabilities of their supply chain partners. This creates competitive advantages in the marketplace and because of this SCM has acquired strategic importance. Lean Approach is a management strategy that focuses on reducing every type of waste present in an organization. This approach is becoming more and more popular among supply chain managers. The supply chain application of lean approach is not frequent. In particular, it is not well studied which are the impacts of lean approach principles in a supply chain context. In literature there are only few studies aimed at understanding the qualitative impact of the lean approach in supply chains. Therefore, the goal of this research work is to study the impacts of lean principles implementation along a supply chain. To achieve this, a simulation model of a threeechelon multi-product supply chain has been built. Kanban system (and several priority policies) and setup time reduction degrees are implemented in the lean-configured supply chain to apply pull and lot-sizing decrease principles respectively. To evaluate the benefits of lean approach, lean supply chain is compared with an EOQ-configured supply chain. The simulation results show that Kanban system and setup-time reduction improve inventory stock level. They also show that logistics efforts are affected to lean implementation degree. The paper concludes describing performances of lean supply chain in different contexts.

Keywords: Inventory policy, Kanban, lean supply chain, simulation study, supply chain management, planning.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1109453

References:

[1] Womack J., Roos D., Jones D. The Machine That Changed The World. Rawson Associates, New York, N.Y.; 1990.
[2] Ōhno T. Toyota Production System. Cambridge, Mass: Productivity Press; 1988.
[3] Bicheno, The New Lean Toolbox. Towards Fast, Flexible Flow. 2004.
[4] Schmenner R. Service Businesses and Productivity. Decision Sciences, 2004.
[5] Liker J. The Toyota Way. New York: McGraw-Hill; 2004.
[6] Jasti N., Kodali R. Lean production: literature review and trends. International Journal of Production Research, 2014.
[7] Reichhart A., Holweg M. Lean distribution: concepts, contributions, conflicts. International Journal of Production Research. 2007.
[8] Womack, J. P. and Jones, D. T., “From Lean Production to the lean Enterprise”. Harvard Business Review, 1994.
[9] Liker, J. K., Wu Y. C., “Japanese automakers, U.S. suppliers and supply-chain superiority”. MIT Sloan management review, 2000.
[10] Lamming R. “Squaring lean supply with supply chain management”. International Journal of Operations & Produciont Management. 1996.
[11] Gary Jarrett P. An analysis of international health care logistics. Leadership in Health Services. 2006.
[12] Gavirneni S., Kapuscinski R., Tayur S. Value of Information in Capacitated Supply Chains. Management Science. 1999.
[13] Gavirneni S. Information Flows in Capacitated Supply Chains with Fixed Ordering Costs. Management Science. 2002.
[14] Kwak J., Gavirneni S. Retailer policy, uncertainty reduction, and supply chain performance. International Journal of Production Economics. 2011.
[15] Chen F., Drezner Z., Ryan J., Simchi-Levi D. Quantifying the Bullwhip Effect in a Simple Supply Chain: The Impact of Forecasting, Lead Times, and Information. Management Science. 2000.
[16] Lee H., So K., Tang C. The Value of Information Sharing in a Two- Level Supply Chain. Management Science. 2000.
[17] Portioli Staudacher, A. P., Bush, A. Analyzing the Impact of Lean Approach in Pharmaceutical Supply Chain. Proceedings of the International Conference on Health Care Systems Engineering (3-319- 01847-7; 3-319-01848-5). 2014.