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作者：Hu, Qiaohai (Joice); Schwarz, Leroy B.; Uhan, Nelson A.
作者单位：Washington University (WUSTL); Purdue University System; Purdue University; Purdue University System; Purdue University
摘要：This paper examines the impact of group purchasing organizations (GPOs) on healthcare-product supply chains. The supply chain we study consists of a profit-maximizing manufacturer with a quantity-discount schedule that is nonincreasing in quantity and ensures nondecreasing revenue, a profit-maximizing GPO, a competitive source selling at a fixed unit price, and n providers (e.g., hospitals) with fixed demands for a single product. Each provider seeks to minimize its total purchasing cost (i.e....
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作者：Lu, Lauren Xiaoyuan; Lariviere, Martin A.
作者单位：University of North Carolina; University of North Carolina Chapel Hill; Northwestern University
摘要：We consider a supply chain in which a supplier sells products to multiple retailers. When orders from the retailers exceed the supplier's capacity, she must employ an allocation mechanism to balance supply and demand. In particular, we consider a commonly used allocation scheme in the automobile industry: turn-and-earn, which uses past sales to allocate capacity. In essence, retailers earn an allotment of a vehicle after they sell one. In contrast to turn-and-earn, fixed allocation ignores pas...
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作者：Mehrotra, Vijay; Ross, Kevin; Ryder, Geoff; Zhou, Yong-Pin
作者单位：University of San Francisco; University of California System; University of California Santa Cruz; University of Washington; University of Washington Seattle
摘要：In many call centers, agents are trained to handle all arriving calls but exhibit very different performance for the same call type, where we define performance by both the average call handling time and the call resolution probability. In this paper, we explore strategies for determining which calls should be handled by which agents, where these assignments are dynamically determined based on the specific attributes of the agents and/or the current state of the system. We test several routing...
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作者：Kurtulus, Muemin; Uelkue, Sezer; Toktay, Beril L.
作者单位：Vanderbilt University; Georgetown University; University System of Georgia; Georgia Institute of Technology
摘要：Motivated by the mixed evidence concerning the adoption level and value of collaborative forecasting (CF) implementations in retail supply chains, in this paper, we explore the conditions under which CF offers the highest potential. We consider a two-stage supply chain with a single supplier selling its product to consumers through a single retailer. We assume that both the supplier and the retailer can improve the quality of their demand forecasts by making costly forecasting investments to g...
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作者：Lee, Deishin
作者单位：Harvard University
摘要：This paper studies how a firm can create and capture value by converting a waste stream into a useful and saleable by-product (i.e., implementing by-product synergy (BPS)). We show that BPS creates an operational synergy between two products that are jointly produced. In essence, BPS is a process innovation that reduces the marginal cost of the original product and/or the by-product. The firm creates value through this process innovation and can capture this value by capturing newly created ma...
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作者：Elmaghraby, Wedad J.; Katok, Elena; Santamaria, Natalia
作者单位：University System of Maryland; University of Maryland College Park; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Universidad de los Andes (Colombia)
摘要：A popular procurement auction format is one in which bidders compete during a live auction event but observe only the rank of their own bid and not the price bids of their competitors. We investigate the performance of auctions with rank feedback in a simple setting for which analytical benchmarks are readily available. We test these benchmarks in the laboratory by comparing the performance of auctions with rank-based feedback to auctions with full-price feedback as well as to auctions with no...
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作者：Perdikaki, Olga; Kesavan, Saravanan; Swaminathan, Jayashankar M.
作者单位：Texas A&M University System; Texas A&M University College Station; Mays Business School; University of North Carolina; University of North Carolina Chapel Hill
摘要：Attracting shoppers to stores and converting the incoming traffic into sales profitably are vital for the financial health of retailers. In this paper, we use proprietary data pertaining to an apparel retailer to study the relationship between store traffic, labor, and sales performance. We decompose sales volume into conversion rate (defined as the ratio of number of transactions to traffic) and basket value (defined as the ratio of sales volume to number of transactions) and analyze the impa...
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作者：Zhang, Jingyu; Denton, Brian T.; Balasubramanian, Hari; Shah, Nilay D.; Inman, Brant A.
作者单位：Philips; Philips Research; North Carolina State University; University of Massachusetts System; University of Massachusetts Amherst; Mayo Clinic; Duke University
摘要：prostate cancer is the most common solid tumor in American men and is screened for using prostate-specific antigen (PSA) tests. We report on a nonstationary partially observable Markov decision process (POMDP) for prostate biopsy referral decisions. The core states are the patients' prostate cancer related health states, and PSA test results are the observations. Transition probabilities and rewards are inferred from the Mayo Clinic Radical Prostatectomy Registry and the medical literature. Th...
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作者：Day, Robert; Garfinkel, Robert; Thompson, Steven
作者单位：University of Connecticut; University of Richmond
摘要：We consider the problem of balancing two competing objectives in the pursuit of efficient management of operating rooms in a hospital: providing surgeons with predictable, reliable access to the operating room and maintaining high utilization of capacity. The common solution to the first problem (in practice) is to grant exclusive block time, in which a portion of the week in an operating room is designated to a particular surgeon, barring other surgeons from using this room/time. As a major i...
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作者：Dobson, Gregory; Lee, Hsiao-Hui; Sainathan, Arvind; Tilson, Vera
作者单位：University of Rochester; Nanyang Technological University; University of Hong Kong
摘要：We consider the work flow in a medical teaching facility, examining the process that involves an initial patient exam by a resident physician, a subsequent conference between the resident and the attending physician, and the attending physician's visit with the patient. We create an analytical model of a tandem queue with finite buffer space to analyze the impact of different work prioritization policies on the throughput and the flow time of patients in the facility-measures that influence bo...
