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Optimal Ordering Decisions in Portfolio Procurement Considering Spot Price Fluctuation

Author

Listed:
  • Gongli Luo

    (College of Economics and Management, Qingdao University of Science and Technology, Qingdao 266101, China
    College of Economics and Management, Shandong University of Science and Technology, Qingdao 266590, China)

  • Xiaoqing Liu

    (College of Economics and Management, Qingdao University of Science and Technology, Qingdao 266101, China
    College of Economics and Management, Binzhou University, Binzhou 256600, China)

  • Felix T. S. Chan

    (Department of Decision Sciences, Macau University of Science and Technology, Taipa, Macao)

Abstract

This paper studies a newsvendor’s optimal ordering decisions in portfolio procurement from long-term contracts and spot purchases. In portfolio procurement, the newsvendor can order commodities in a long-term contract to meet market demand, and the excess demands can be supplemented from the spot market. Firstly, the newsvendor’s optimal ordering quantity in long-term contracts to maximize the expected profits is achieved when the spot price fluctuation is not considered. Furthermore, the newsvendor’s optimal ordering quantity is derived when the spot price fluctuation is considered. The research will show that the newsvendor’s optimal ordering decisions change with market parameters. Spot price fluctuation has a significant influence on optimal ordering decisions in portfolio procurement. This research uses the method of relative fluctuation of spot price and long-term contract price, which is more applicable in practice. It is shown that the newsvendor’s optimal ordering quantity in a long-term contract increases with the spot price fluctuation, which implies that price fluctuation in the spot market leads to a greater order quantities in long-term contracts. Moreover, it is proven that the newsvendor’s expected profit obtained from portfolio procurement decreases with increasing spot price fluctuation. Finally, this is verified by numerical experiments, and several management insights are suggested.

Suggested Citation

  • Gongli Luo & Xiaoqing Liu & Felix T. S. Chan, 2023. "Optimal Ordering Decisions in Portfolio Procurement Considering Spot Price Fluctuation," Sustainability, MDPI, vol. 15(14), pages 1-13, July.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:14:p:11169-:d:1196354
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    References listed on IDEAS

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    1. Guang Xiao & Nan Yang & Renyu Zhang, 2015. "Dynamic Pricing and Inventory Management Under Fluctuating Procurement Costs," Manufacturing & Service Operations Management, INFORMS, vol. 17(3), pages 321-334, July.
    2. Merzifonluoglu, Yasemin, 2017. "Integrated demand and procurement portfolio management with spot market volatility and option contracts," European Journal of Operational Research, Elsevier, vol. 258(1), pages 181-192.
    3. Jiarong Luo & Xu Chen, 2017. "Risk hedging via option contracts in a random yield supply chain," Annals of Operations Research, Springer, vol. 257(1), pages 697-719, October.
    4. Johari, Maryam & Hosseini-Motlagh, Seyyed-Mahdi & Nematollahi, Mohammadreza & Goh, Mark & Ignatius, Joshua, 2018. "Bi-level credit period coordination for periodic review inventory system with price-credit dependent demand under time value of money," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 114(C), pages 270-291.
    5. Hu, Xiangling & Su, Ping, 2018. "The newsvendor's joint procurement and pricing problem under price-sensitive stochastic demand and purchase price uncertainty," Omega, Elsevier, vol. 79(C), pages 81-90.
    6. Xu, Xinsheng & Ji, Ping & Chan, Felix T.S., 2022. "On maximizing a loss-averse buyer’s expected utility in a multi-sourcing problem," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 202(C), pages 388-404.
    7. Canyakmaz, Caner & Özekici, Süleyman & Karaesmen, Fikri, 2019. "An inventory model where customer demand is dependent on a stochastic price process," International Journal of Production Economics, Elsevier, vol. 212(C), pages 139-152.
    8. Xinsheng Xu & Felix T.S. Chan & Chi Kin Chan, 2019. "Optimal option purchase decision of a loss-averse retailer under emergent replenishment," International Journal of Production Research, Taylor & Francis Journals, vol. 57(14), pages 4594-4620, July.
    9. Bajwa, Naeem & Sox, Charles R. & Ishfaq, Rafay, 2016. "Coordinating pricing and production decisions for multiple products," Omega, Elsevier, vol. 64(C), pages 86-101.
    10. Edward Anderson & Bo Chen & Lusheng Shao, 2017. "Supplier Competition with Option Contracts for Discrete Blocks of Capacity," Operations Research, INFORMS, vol. 65(4), pages 952-967, August.
    11. Youqiong Ai & Yifan Xu, 2021. "Strategic sourcing in forward and spot markets with reliable and unreliable suppliers," International Journal of Production Research, Taylor & Francis Journals, vol. 59(3), pages 926-941, February.
    12. Xin-Sheng Xu & Felix T. S. Chan, 2019. "Optimal Option Purchasing Decisions for the Risk-Averse Retailer with Shortage Cost," Asia-Pacific Journal of Operational Research (APJOR), World Scientific Publishing Co. Pte. Ltd., vol. 36(02), pages 1-25, April.
    13. Jafar Namdar & Xueping Li & Rupy Sawhney & Ninad Pradhan, 2018. "Supply chain resilience for single and multiple sourcing in the presence of disruption risks," International Journal of Production Research, Taylor & Francis Journals, vol. 56(6), pages 2339-2360, March.
    14. Huang, Zhouchun & Zheng, Qipeng Phil, 2020. "A multistage stochastic programming approach for preventive maintenance scheduling of GENCOs with natural gas contract," European Journal of Operational Research, Elsevier, vol. 287(3), pages 1036-1051.
    15. Xing, Wei & Wang, Shouyang & Liu, Liming, 2012. "Optimal ordering and pricing strategies in the presence of a B2B spot market," European Journal of Operational Research, Elsevier, vol. 221(1), pages 87-98.
    16. Zhao, Yingxue & Choi, Tsan-Ming & Cheng, T.C.E. & Wang, Shouyang, 2018. "Supply option contracts with spot market and demand information updating," European Journal of Operational Research, Elsevier, vol. 266(3), pages 1062-1071.
    17. Chung-Yee Lee & Christopher S. Tang & Rui Yin & Jaehyung An, 2015. "Fractional Price Matching Policies Arising from the Ocean Freight Service Industry," Production and Operations Management, Production and Operations Management Society, vol. 24(7), pages 1118-1134, July.
    18. Chung-Yee Lee & Xi Li & Yapeng Xie, 2013. "Procurement risk management using capacitated option contracts with fixed ordering costs," IISE Transactions, Taylor & Francis Journals, vol. 45(8), pages 845-864.
    19. Li, Jianbin & Luo, Xiaomeng & Wang, Qifei & Zhou, Weihua, 2021. "Supply chain coordination through capacity reservation contract and quantity flexibility contract," Omega, Elsevier, vol. 99(C).
    20. Youhua (Frank) Chen & Weili Xue & Jian Yang, 2013. "Technical Note---Optimal Inventory Policy in the Presence of a Long-Term Supplier and a Spot Market," Operations Research, INFORMS, vol. 61(1), pages 88-97, February.
    21. Merzifonluoglu, Yasemin, 2015. "Risk averse supply portfolio selection with supply, demand and spot market volatility," Omega, Elsevier, vol. 57(PA), pages 40-53.
    22. Maryam Johari & Seyyed-Mahdi Hosseini-Motlagh & Mohammadreza Nematollahi, 2021. "The Coordinator Role of Trade Credit Contract for Coordinating Integrated Pricing and Periodic Review Inventory Decisions With Stochastic Demand," Asia-Pacific Journal of Operational Research (APJOR), World Scientific Publishing Co. Pte. Ltd., vol. 38(04), pages 1-54, August.
    23. Karl Inderfurth & Peter Kelle & Rainer Kleber, 2018. "Inventory control in dual sourcing commodity procurement with price correlation," Central European Journal of Operations Research, Springer;Slovak Society for Operations Research;Hungarian Operational Research Society;Czech Society for Operations Research;Österr. Gesellschaft für Operations Research (ÖGOR);Slovenian Society Informatika - Section for Operational Research;Croatian Operational Research Society, vol. 26(1), pages 93-119, March.
    24. Xu, Jinpeng & Feng, Gengzhong & Jiang, Wei & Wang, Shouyang, 2015. "Optimal procurement of long-term contracts in the presence of imperfect spot market," Omega, Elsevier, vol. 52(C), pages 42-52.
    25. Hau Lee & Seungjin Whang, 2002. "The Impact of the Secondary Market on the Supply Chain," Management Science, INFORMS, vol. 48(6), pages 719-731, June.
    26. Xu, Xinsheng & Ji, Ping & Sang, Shuming, 2023. "Supply option purchasing decisions via mismatch cost minimization," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 210(C), pages 260-280.
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