Study of inventory management strategies under supply uncertainty from sustainability perspective
- 주제(키워드) Supply Chain , Inventory management strategies , Uncertainty , Sustainability , Vendor managed inventory , Retailer managed inventory , Lead-time , Yield , Demand
- 발행기관 고려대학교 대학원
- 지도교수 정태수
- 발행년도 2020
- 학위수여년월 2020. 2
- 학위구분 박사
- 학과 대학원 산업경영공학과
- 원문페이지 96 p
- UCI I804:11009-000000127099
- DOI 10.23186/korea.000000127099.11009.0000949
- 본문언어 영어
- 제출원본 000046025461
초록/요약
Generally, there are various elements of uncertainty in a supply chain. Various uncertainties can increase costs, change decisions, and create bullwhip effects. This study examines a sustainable economic order quantity (S-EOQ) problem with a stochastic lead-time and multi-modal transportation options. With the S-EOQ, decisions of order quantities, as well as a reorder point could be influenced by various factors, including unit price, stock-out cost, lead-time variability and emission costs. The impact of the lead time uncertainty and emission and cost was determined, and the optimum transport route change and the optimum sourcing area change due to two components was confirmed. Also this study examines the relationship between uncertainty in the supply chain and the outcome of inventory replenishment policies. In particular, uncertainties in lead time, demand, and yield are very important in the semiconductor industry. Higher uncertainty can lead to bullwhip effects that can undermine the performance of the entire supply chain. Specifically, the effects of well-known uncertainties on manufacturer production quantity and retailer order quantity decisions in a decentralized supply chain were analyzed. A comparative analysis of the two alternatives is conducted to determine suitable options for improving supply chain performance.
more목차
Chapter 1: Introduction and Literature review
Chapter 2: Sustainable EOQ under Lead-Time Uncertainty and Multi-Modal Transport
2.1 Introduction
2.2 Literature Review
2.3 Sustainable EOQ Model with Lead-Time Uncertainty and Multi-Modality
2.3.1 Ordering Cost OC
2.3.2 Holding Cost HC
2.3.3 Shortage Cost SC
2.3.4 Transportation Cost TPC
2.3.5 Total Annual Cost TC
2.4 Numerical Experiments and Sensitivity Analysis
2.4.1 Effects of Stock-Out Cost
2.4.2 Effects of Lead-Time Variability
2.4.3 Effects of External Costs
2.4.4 Effects of Domestic vs. International Sourcing
2.4.5 Implications and managerial insights
2.5 Conclusions
Chapter 3: Effects of yield and lead-time uncertainty on retailer-managed and vendor managed inventory management
3.1 Introduction
3.2 Benchmark: Centralized Supply Chain
3.3 Decentralized Supply Chain under a Retailer-managed Inventory
3.4 Decentralized Supply Chain under a Vendor-managed Inventory
3.5 Numerical Experiments and Managerial Insights
3.5.1 Effects of parameter changes on total profit
3.5.2 Effects of yield on order quantity Q
3.5.3 Effects of VMI replenishment on production quantity Z
3.5.4 Effects of unit cost variation
3.5.5 Effects of wholesale price variation
3.5.6 Implications and managerial insights
3.6 Conclusion
Chapter 4: Conclusion and Discussion
Appendix A: Experimental Results
References
