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Title: A multiple-retailer replenishment model under VMI: Accounting for the retailer heterogeneity
Authors: Verma, Nishant Kumar
Chatterjee, Ashis Kumar
Keywords: Inventory management
Joint economic lot size model
Multi-item joint replenishment
Supply chain management
Vendor managed inventory
Issue Date: 2017
Publisher: SCOPUS
Computers and Industrial Engineering
Elsevier Ltd
Series/Report no.: 104
Abstract: Vendor managed inventory (VMI) is a well-established supply chain practice where the supplier is responsible for managing inventory at the retail point. In particular, the supplier takes care of when to order and how much to order on behalf of the retailer. This paper considers a single supplier � multiple retailer setting where the supplier takes inventory replenishment decisions for retailers such that the replenishment quantity for each retailer is within an upper bound that is mutually agreed upon in the VMI contract. We develop a nonlinear mixed-integer programming model to compute the optimal replenishment frequency and quantity for each of the retailer, such that the total system cost is minimized. A conceptual and numerical comparison is made with the existing models in the VMI literature. The proposed model is found to perform better for all levels of retailer heterogeneity, thereby establishing generalization among the class of models. We also propose an efficient heuristic for solving the proposed model by utilizing the concept of cycle ratio (setup cost/holding cost ? demand), thus reducing the computational time drastically. Lastly, through a numerical analysis, we find that the proposed model with integer ratio policy structure is more stable as compared to the existing alternative replenishment models. � 2016 Elsevier Ltd
Description: Verma, Nishant Kumar, Indian Institute of Management Sirmaur, Paonta Sahib, India; Chatterjee, Ashis Kumar, Indian Institute of Management Calcutta, Kolkata, India
ISSN/ISBN - 03608352
DOI - 10.1016/j.cie.2016.12.001
Appears in Collections:Operations Management

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