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Title: Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs
Authors: Yuan, Quan
Chua, Geoffrey A.
Liu, Xing
Chen, Youhua Frank
Keywords: DRNTU::Business::Operations management::Production management
Issue Date: 2015
Source: Yuan, Q., Chua, G. A., Liu, X., & Chen, Y. F. (2015). Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs. Production and operations management, 24(11), 1750–1767.
Series/Report no.: Production and operations management
Abstract: We study a minimum total commitment (MTC) contract embedded in a finite-horizon periodic-review inventory system. Under this contract, the buyer commits to purchase a minimum quantity of a single product from the supplier over the entire planning horizon. We consider nonstationary demand and per-unit cost, discount factor, and nonzero setup cost. Because the formulations used in existing literature are unable to handle our setting, we develop a new formulation based on a state transformation technique using unsold commitment instead of unbought commitment as state variable. We first revisit the zero setup cost case and show that the optimal ordering policy is an unsold-commitment-dependent base-stock policy. We also provide a simpler proof of the optimality of the dual base-stock policy. We then study the nonzero setup cost case and prove a new result, that the optimal solution is an unsold-commitment-dependent (s, S) policy. We further propose two heuristic policies, which numerical tests show to perform very well. We also discuss two extensions to show the generality of our method's effectiveness. Finally, we use our results to examine the effect of different contract terms such as duration, lead time, and commitment on buyer's cost. We also compare total supply chain profits under periodic commitment, MTC, and no commitment.
ISSN: 1059-1478
Rights: © 2015 Production and Operations Management Society. This is the author created version of a work that has been peer reviewed and accepted for publication in Production and Operations Management, published by Wiley-Blackwell on behalf of Production and Operations Management Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document.  The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:NBS Journal Articles

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