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作者：Katehakis, Michael N.; Melamed, Benjamin; Shi, Jim (Junmin)
作者单位：Rutgers University System; Rutgers University Newark; Rutgers University New Brunswick; Rutgers University System; Rutgers University New Brunswick; Rutgers University Newark; New Jersey Institute of Technology
摘要：Small-to-medium-sized enterprises (SMEs), including many startup firms, need to manage interrelated flows of cash and inventories of goods. In this study, we model a firm that can finance its inventory (ordered or manufactured) with loans in order to meet random demand which in general may not be time stationary. The firm earns interest on its cash on hand and pays interest on its debt. The objective is to maximize the expected value of the firm's capital at the end of a finite planning horizo...
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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：Qi, Lian; Chu, Leon Yang; Chen, Rachel R.
作者单位：Rutgers University System; Rutgers University Newark; Rutgers University New Brunswick; University of Southern California; University of California System; University of California Davis
摘要：This study examines a firm's quality and price decisions when consumers differ not only in their willingness-to-pay for quality but also in their reservation utility for the basic product. We find that while the firm offers lower-quality products when consumers' valuations for quality deteriorate, the optimal quality may increase with a negative shift in consumers' reservation utilities. We also investigate the optimal price and quality of the products within a vertically differentiated produc...
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作者：Vanajakumari, Manoj; Kumar, Subodha; Gupta, Sushil
作者单位：Texas A&M University System; Texas A&M University College Station; Texas A&M University System; Texas A&M University College Station; Mays Business School; State University System of Florida; Florida International University
摘要：In the aftermath of a disaster, the relief items are transported from temporary warehouses (Staging Areas, SAs) to the Points of Distribution (PODs). Reducing the response time to provide relief items to disaster victims and cost minimization are two important objectives of this study. We propose an integrated optimization model for simultaneously determining (1) locations of staging areas, (2) inventory assignments to these SAs, (3) selecting sizes and numbers of trucks, and (4) routing of tr...
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作者：Yao, David D.; Zhou, Sean X.; Zhuang, Weifen
作者单位：Columbia University; Chinese University of Hong Kong; Xiamen University
摘要：A common problem faced by many firms in their supply chains can be abstracted as follows. Periodically, or at the beginning of some selling season, the firm needs to distribute finished goods to a set of stocking locations, which, in turn, supply customer demands. Over the selling season, if and when there is a supply-demand mismatch somewhere, a re-distribution or transshipment will be needed. Hence, there are two decisions involved: the one-time stocking decision at the beginning of the seas...
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作者：Chaturvedi, Aadhaar; Martinez-de-Albeniz, Victor
作者单位：University of Namur; University of Navarra; IESE Business School
摘要：Firms mitigate uncertainty in demand and supply by carrying safety stock, planning for excess capacity and diversifying supply sources. In this study, we provide a framework to jointly optimize these three levers in a periodic review infinite horizon setting, and in particular we examine how one can reduce inventory and capacity investments through proper diversification strategies. Observing that a modified base-stock inventory policy is optimal, we find that the capacity-diversification prob...
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作者：Gupta, Sushil; Starr, Martin K.; Farahani, Reza Zanjirani; Matinrad, Niki
作者单位：State University System of Florida; Florida International University; Rollins College; Kingston University; K. N. Toosi University of Technology
摘要：We have reviewed disaster management research papers published in major operations management, management science, operations research, supply chain management and transportation/logistics journals. In reviewing these studies, our objective is to assess and present the macro level architectural blue print of disaster management research with the hope that it will attract new researchers and motivate established researchers to contribute to this important field. The secondary objective is to br...
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作者：Leng, Mingming; Li, Zaichen; Liang, Liping
作者单位：Lingnan University
摘要：We investigate a manufacturer-retailer channel to explore the role of a retailer in assuring the quality of a manufacturer's product as a quality gatekeeper. Such a gatekeeping activity can entail a reduction in the defective rate for consumers, if the retailer charges the manufacturer a penalty for each identified defect that is no smaller than the market penalty for an unidentified defect. As a result of the retailer's gatekeeping, the change in the negotiated wholesale price only depends on...
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作者：Samorani, Michele; Ganguly, Subhamoy
作者单位：University of Alberta; Indian Institute of Management (IIM System); Indian Institute of Management Udaipur (IIMU)
摘要：Even though patients often arrive early and out of turn for scheduled appointments in outpatient clinics, no research has been undertaken to establish whether an available provider should see an early patient right away (preempt) or wait for the patient scheduled next. This problem, which we call the Wait-Preempt Dilemma, is particularly relevant for high-service-level clinics (such as psychotherapy, chiropractic, acupuncture), where preempting may cause the missing patient to wait for an exce...
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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,...
