Production and Operations Management

最新文章

• Role of Bottom-Up Decision Processes in Improving the Quality of Health Care Delivery: A Contingency Perspective AI翻译
  作者：Senot, Claire; Chandrasekaran, Aravind; Ward, Peter T.
  作者单位：Tulane University; University System of Ohio; Ohio State University
  摘要：Recent changes to health care reimbursements policy mandate hospitals to improve simultaneously on conformance and experiential quality. Conformance quality measures the level of caregivers' adherence to evidence-based standards of care while experiential quality measures the level of interaction between caregivers and patients. Hospitals operate in regulated environments characterized by heavy top-down control mechanisms that are conducible for improving conformance quality. However, mechanis...
• Reducing Hospital Readmissions by Integrating Empirical Prediction with Resource Optimization AI翻译
  作者：Helm, Jonathan E.; Alaeddini, Adel; Stauffer, Jon M.; Bretthauer, Kurt M.; Skolarus, Ted A.
  作者单位：Indiana University System; IU Kelley School of Business; Indiana University Bloomington; University of Texas System; University of Texas at San Antonio; University of Michigan System; University of Michigan
  摘要：Hospital readmissions present an increasingly important challenge for health-care organizations. Readmissions are expensive and often unnecessary, putting patients at risk and costing $15billion annually in the United States alone. Currently, 17% of Medicare patients are readmitted to a hospital within 30days of initial discharge with readmissions typically being more expensive than the original visit to the hospital. Recent legislation penalizes organizations with a high readmission rate. The...
• Delegation vs. Control in Supply Chain Procurement under Competition AI翻译
  作者：Bolandifar, Ehsan; Kouvelis, Panos; Zhang, Fuqiang
  作者单位：Chinese University of Hong Kong; Washington University (WUSTL)
  摘要：This paper studies the optimal component procurement strategies of two competing OEMs selling substitutable products. The OEMs outsource their production to a common contract manufacturer, who in turn needs an input from a component supplier. Each OEM may either directly procure the input from the component supplier, or delegate the procurement task to the contract manufacturer. We first analyze the OEMs' procurement game under a non-strategic supplier whose component price is exogenously give...
• Cash-Flow Based Dynamic Inventory Management AI翻译
  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...
• Inventory Rationing for Multiple Class Demand under Continuous Review AI翻译
  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...
• Quality Provision with Heterogeneous Consumer Reservation Utilities AI翻译
  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...
• An Integrated Logistic Model for Predictable Disasters AI翻译
  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...
• Joint Initial Stocking and TransshipmentAsymptotics and Bounds AI翻译
  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...
• Safety Stock, Excess Capacity or Diversification: Trade-Offs under Supply and Demand Uncertainty AI翻译
  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...
• Disaster Management from a POM Perspective: Mapping a New Domain AI翻译
  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...