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Periodic-review policies for a system with emergency ordersHederra, Francisco Javier 25 September 2008 (has links)
We study an inventory system with two potential supply modes: regular order placement opportunities happen at a fixed frequency, which defines regular review cycles, while emergency orders can be placed on every period within a regular review cycle. Regular and emergency orders incur a per-unit cost while the latest incurs an additional setup cost
For a regular order lead-time equal to two periods, we show that the optimal policy with respect to the expected total discounted cost, is of (s; S) type for emergency orders while the size of a regular order depends on the inventory position following a potential emergency order. Although we could not establish the optimality for regular order lead-times exceeding two periods, substantial experimental evidence supports the conjecture that the optimal policy retains the same structure.
Since the optimal policy algorithm requires significant computational effort, we develop and evaluate two heuristic policies whose operational parameters can be computed with relatively small computational effort and compare them against the optimal policy in terms of implementation difficulty, speed and accuracy for an experimental design of 3888 cases.
The evaluation of the proposed optimal policy and the two heuristics requires a simulation suite flexible enough to capture the specific problem dynamics. This motivates the development of the Inventory Simulator Workbench (ISW). This inventory system simulator, written in Java, provides the user with a graphical interface and the ability to model a large range of supply chain structures and inventory ordering and distribution policies.
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Strategic purchasing and supply management a strategy-based selection of suppliers /Moser, Roger January 2006 (has links)
Zugl.: Oestrich-Winkel, Europ. Business School, Diss., 2006
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Multi-objective decision making for supplier selection in outsourcing /Mohile, Pushpen K. January 2008 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 2008. / Typescript. Includes bibliographical references (leaves 150-151).
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Value co-creation in industrial buyer-seller partnerships--creating and exploiting interdependencies : an empirical case study /Forsström, Birgitta. January 2005 (has links)
Thesis (Doctoral)-- Åbo Akademi., 2005. / Extra t.p. with thesis statement inserted. Errata slip inserted. Includes bibliographical references (p. 182-190).
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Application of multi-agent technology to supply chain management /Yung, King, Stanley. January 1999 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2000. / Includes bibliographical references (leaves 76-78).
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The balance of buyer-seller interactions along the marketing strategies continuum in the Hong Kong markets for electrical and mechanical industrial products /Kwok, Chi-hung, Chester. January 1992 (has links)
Thesis (M.B.A.)--University of Hong Kong, 1992.
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Buyer-seller relationships strategies in the Hong Kong markets for electrical and mechanical industrial products /Cheng, Wai-kei, Anthony. January 1992 (has links)
Thesis (M.B.A.)--University of Hong Kong, 1992.
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Power and mutualism in Japanese supply networksAhmadjian, Christina Linn. January 1995 (has links)
Thesis (Ph. D.)--University of California at Berkeley, 1995.
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The companies we keep : formation and consequences of relational embeddedness /Zhang, Guangqi. January 2002 (has links)
Thesis (Ph. D.)--University of Chicago, Dept. of Sociology, August 2002. / Includes bibliographical references. Also available on the Internet.
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An analysis of the inventory/repair decision in a multi-echelon environment /Hitzelberger, William Ronald, January 1985 (has links)
Thesis (Ph. D.)--Ohio State University, 1985. / Includes bibliographical references (leaves 300-307). Available online via OhioLINK's ETD Center.
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