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作者：Goh, Joel; Porteus, Evan L.
作者单位：Harvard University; Stanford University
摘要：We extend the Clark-Scarf serial multi-echelon inventory model to include procuring production inputs under short-term take-or-pay contracts at one or more stages. In each period, each such stage has the option to order/process at two different cost rates; the cheaper rate applies to units up to the contract quantity selected in the previous period. We prove that in each period and at each such stage, there are three base-stock levels that characterize an optimal policy, two for the inventory ...
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作者：Li, Jia; Chan, Tat Y.; Lewis, Michael
作者单位：Purdue University System; Purdue University; Washington University (WUSTL); Emory University
摘要：This study examines the effects of a relatively new channel structure on prices and sales in a large department store, which in recent years has switched the management of many of its product categories from a traditional retailer-managed system to a manufacturer-managed system. We find that the change caused overall retail prices to decrease. However, there was significant heterogeneity in the response across brands. In the cell phone category, brands with high market shares and inelastic dem...
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作者：King, Gregory J.; Chao, Xiuli; Duenyas, Izak
作者单位：Gap Inc.; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan
摘要：In consulting, finance, and other service industries, customers represent a revenue stream, and must be acquired and retained over time. In this paper, we study the resource allocation problem of a profit maximizing service firm that dynamically allocates its resources toward acquiring new clients and retaining unsatisfied existing ones. The interaction between acquisition and retention in our model is reflected in the cash constraint on total expected spending on acquisition and retention in ...
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作者：Ding, Qing; Kouvelis, Panos; Milner, Joseph
作者单位：Huazhong University of Science & Technology; Washington University (WUSTL); University of Toronto
摘要：We consider how a firm should ration inventory to multiple classes in a stochastic demand environment with partial, class-dependent backlogging where the firm incurs a fixed setup cost when ordering from its supplier. We present an infinite-horizon, average cost criterion Markov decision problem formulation for the case with zero lead times. We provide an algorithm that determines the optimal rationing policy, and show how to find the optimal base-stock reorder policy. Numerical studies indica...
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作者：Arya, Anil; Mittendorf, Brian
作者单位：University System of Ohio; Ohio State University
摘要：The organization of charitable distribution channels to ensure donor contributions reach beneficiaries in an efficient manner and the use of accounting metrics of such efficiency (whether provided directly or by charity rating groups) are oft-discussed issues in the nonprofit sector. The two issues are inextricably linked since reported efficiency measures influence subsequent donor giving. This study develops a parsimonious model of a charity that must decide how best to employ its resources,...
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作者：Mutha, Akshay; Bansal, Saurabh; Guide, V. Daniel R.
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
摘要：We discuss the optimal raw material acquisition strategy for a third party remanufacturer (3PR). We specifically investigate whether a 3PR should acquire used products or cores in bulk with uncertain quality levels, or in sorted grades with known quality levels; and whether to acquire and remanufacture cores before the demand is realized (planned acquisition), or after the demand is realized (reactive acquisition), or on both occasions (sequential acquisition). When only sorted cores are acqui...
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作者：Kyparisis, George J.; Koulamas, Christos
作者单位：State University System of Florida; Florida International University
摘要：We consider multitier push assembly systems with sequential supplier decisions and a wholesale price contract. We show that both an Original Equipment Manufacturer (OEM)-Contract Manufacturer (CM) assembly and a modular assembly with sequential supplier decisions are mathematically equivalent to the corresponding traditional assembly. We determine that, in most cases, the first mover supplier realizes a higher profit than the second mover supplier but we also identify the sufficient conditions...
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作者：Hua, Zhongsheng; Chen, Wuhua; Zhang, Zhe George
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS; Zhejiang University; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Western Washington University; Simon Fraser University
摘要：As a result of government budgetary limits and rapid market growth, many public service systemssuch as health careare characterized by extensive customer wait times that have become a serious problem. This problem might be solved by allowing private firms to enter these markets, which would provide customers with a choice between a free (governmental) public service provider (SP) and a fee-charging (or toll) private SP. In such a two-tier service system, the two SPs are differentiated by servi...
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作者：de Vries, Jelle; de Koster, Rene; Stam, Daan
作者单位：Vrije Universiteit Amsterdam; Erasmus University Rotterdam; Erasmus University Rotterdam - Excl Erasmus MC
摘要：A controlled field experiment investigates order picking performance in terms of productivity. We examined three manual picker-to-parts order picking methods (parallel, zone, and dynamic zone picking) under two different incentive systems (competition-based vs. cooperation-based) for pickers with different regulatory foci (prevention-focus vs. promotion-focus). The study was carried out in a warehouse erected especially for the purposes of order picking research. Our results show that when usi...
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作者：[Anonymous]
