Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15559
Title: Procurement policy and allocation policy of common component in a two-echelon assembled-to-stock system
Authors: LAU YEW LOON
Keywords: Common Components, Risk-Pooling, Assemble-To-Stock, Simulation, Component Allocation Policy, Procurement Policy
Issue Date: 5-Sep-2006
Source: LAU YEW LOON (2006-09-05). Procurement policy and allocation policy of common component in a two-echelon assembled-to-stock system. ScholarBank@NUS Repository.
Abstract: This dissertation addresses the procurement and component allocation policy in the presence of component-sharing, or component commonality, in a two-echelon Assemble-To-Stock (ATS) system, where end-products are assembled from several common components. A periodic review inventory policy is assumed. Firstly, we use a probabilistic model to analyze the component-sharing effects for a particular allocation policy called equal fractile allocation policy. Then, we propose a component allocation policy that minimizes the total cost while take advantage of component commonality. We adopt Infinitesimal Perturbation Analysis (IPA) and steepest descent algorithm to locate the optimal constant order-up-to level. Finally, we look into a more complex model which deals with auto-regressive demands. We use Sample Average Approximation (SAA) to determine the order quantity at every period based on the updated forecast demands.
URI: http://scholarbank.nus.edu.sg/handle/10635/15559
Appears in Collections:Ph.D Theses (Open)

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