Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs
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-uni...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/107487 http://hdl.handle.net/10220/25514 |
| _version_ | 1826123293325787136 |
|---|---|
| author | Yuan, Quan Chua, Geoffrey A. Liu, Xing Chen, Youhua Frank |
| author2 | Nanyang Business School |
| author_facet | Nanyang Business School Yuan, Quan Chua, Geoffrey A. Liu, Xing Chen, Youhua Frank |
| author_sort | Yuan, Quan |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T06:02:17Z |
| format | Journal Article |
| id | ntu-10356/107487 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:02:17Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1074872023-05-19T06:44:42Z Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs Yuan, Quan Chua, Geoffrey A. Liu, Xing Chen, Youhua Frank Nanyang Business School DRNTU::Business::Operations management::Production management 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. Accepted version 2015-05-13T01:24:35Z 2019-12-06T22:32:15Z 2015-05-13T01:24:35Z 2019-12-06T22:32:15Z 2015 2015 Journal Article 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. 1059-1478 https://hdl.handle.net/10356/107487 http://hdl.handle.net/10220/25514 10.1111/poms.12364 en Production and operations management © 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: [http://dx.doi.org/10.1111/poms.12364]. 33 p. application/pdf |
| spellingShingle | DRNTU::Business::Operations management::Production management Yuan, Quan Chua, Geoffrey A. Liu, Xing Chen, Youhua Frank Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs |
| title | Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs |
| title_full | Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs |
| title_fullStr | Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs |
| title_full_unstemmed | Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs |
| title_short | Unsold versus unbought commitment : minimum total commitment contracts with nonzero setup costs |
| title_sort | unsold versus unbought commitment minimum total commitment contracts with nonzero setup costs |
| topic | DRNTU::Business::Operations management::Production management |
| url | https://hdl.handle.net/10356/107487 http://hdl.handle.net/10220/25514 |
| work_keys_str_mv | AT yuanquan unsoldversusunboughtcommitmentminimumtotalcommitmentcontractswithnonzerosetupcosts AT chuageoffreya unsoldversusunboughtcommitmentminimumtotalcommitmentcontractswithnonzerosetupcosts AT liuxing unsoldversusunboughtcommitmentminimumtotalcommitmentcontractswithnonzerosetupcosts AT chenyouhuafrank unsoldversusunboughtcommitmentminimumtotalcommitmentcontractswithnonzerosetupcosts |