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作者：Chan, Jacky; Gorgulu, Berk; Sarhangian, Vahid
作者单位：University of Toronto; McMaster University
摘要：Problem definition: Medical operations require a large volume and variety of consumable supplies that are kept in hospital inventory and replenished on a regular basis. Stringent requirements on the availability of these supplies, together with high variability in their daily usage, contribute to the high inventory costs of the surgical departments in hospitals. We investigate the value of utilizing Advance Booking Information (ABI) on elective surgeries-which are often booked up to months in ...
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作者：Celik, Umit; Rath, Sandeep; Kesavan, Saravanan; Staats, Bradley R.
作者单位：University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine
摘要：Problem definition: Physicians spend more than five hours a day working on Electronic Health Record (EHR) systems and more than an hour doing EHR tasks after the end of the workday. Numerous studies have identified the detrimental effects of excessive EHR use and after-hours work, including physician burnout, physician attrition, and appointment delays. However, EHR time is not purely an exogenous factor because it depends on physician usage behavior that could have important operational conse...
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作者：Drent, Collin; Drent, Melvin; Arts, Joachim
作者单位：Eindhoven University of Technology; University of Luxembourg
摘要：Problem definition: Production systems deteriorate stochastically due to use and may eventually break down, resulting in high maintenance costs at scheduled maintenance moments. This deterioration behavior is affected by the system's production rate. Although producing at a higher rate generates more revenue, the system may also deteriorate faster. Production should thus be controlled dynamically to tradeoff deterioration and revenue accumulation in between maintenance moments. We study system...
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作者：Shi, Lingling; Hu, Bin
作者单位：McMaster University; University of Texas System; University of Texas Dallas
摘要：Problem definition: The electric vehicle (EV) manufacturer NIO adopts a swappable-battery design and a battery -leasing business model known as battery as a service (BaaS). It recently introduced flexible battery leasing, which allows customers to temporarily up -/downgrade their primary leased batteries based on the needs for range. We investigate whether this business model innovation is viable, namely whether introducing flexible battery leasing in BaaS could benefit the manufacturer, the c...
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作者：Gomez, Juan Camilo David; Cochran, Amy L.; Patterson, Brian W.; Zayas-Caban, Gabriel
作者单位：University of Wisconsin System; University of Wisconsin Madison; University of Wisconsin System; University of Wisconsin Madison; University of Wisconsin System; University of Wisconsin Madison; University of Wisconsin System; University of Wisconsin Madison
摘要：Problem definition: Split flow models, in which a physician rather than a nurse performs triage, are increasingly being used in hospital emergency departments (EDs) to improve patient flow. Before deciding whether such interventions should be adopted, it is important to understand how split flows causally impact patient flow and outcomes. Methodology/results: We employ causal inference methodology to estimate average causal effects of a split flow model on time to be roomed, time to dispositio...
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作者：Zhao, Yanlu; Papier, Felix; Teo, Chung-Piaw
作者单位：Durham University; ESSEC Business School; National University of Singapore; National University of Singapore
摘要：Problem definition: Online food delivery (OFD) platforms have witnessed rapid global expansion, partly driven by shifts in consumer behavior during the COVID-19 pandemic. These platforms enable customers to order food conveniently from a diverse array of restaurants through their mobile phones. A core functionality of these platforms is the algorithmic matching of drivers to food orders, which is the focus of our study as we aim to optimize this driver -order matching process. Methodology/resu...
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作者：Wang, Ruxian; Ke, Chenxu; Zhao, Zifeng
作者单位：Johns Hopkins University; Shanghai University of Finance & Economics; University of Notre Dame
摘要：Problem definition: We investigate the effects of waiting time, mainly due to production in a make -to -batch -order (MTBO) system, on consumer choice behavior, pricing, assortment, and model estimation. In an MTBO system, the seller/manufacturer first collects orders placed within a certain period of time into a batch and then starts the production process. After the production of all orders in a batch are complete, the products are then shipped and delivered to individual consumers. Because ...
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作者：Cakici, Ozden Engin; Karaesmen, Itir
作者单位：American University
摘要：Problem definition: We study the procurement decisions of a trade agent: The agent chooses a bid (unit price to pay) to procure the goods available from seller(s). If the agent wins the bid, the supply is used to meet the buyer's demand. Methodology/results: The trade agent's single -period, single -product problem is a new type of newsvendor problem. We analyze the agent's optimal bid for a seller with yield uncertainty. We show that the bid outcome distribution needs to satisfy an easy -to -...
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作者：Wang, Shixin; Liu, Shaoxuan; Zhang, Jiawei
作者单位：Chinese University of Hong Kong; Shanghai Jiao Tong University; New York University
摘要：Problem definition: We study a robust screening problem where a seller attempts to sell a product to a buyer knowing only the moment and support information of the buyer's valuation distribution. The objective is to maximize the competitive ratio relative to an optimal hindsight policy equipped with full valuation information. Methodology/results: We formulate the robust screening problem as a linear programming problem, which can be solved efficiently if the support of the buyer's valuation i...
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作者：Ding, Jingying; Huh, Woonghee Tim; Rong, Ying
作者单位：Shanghai Jiao Tong University; University of British Columbia
摘要：Problem definition: We study stochastic periodic -review inventory systems with lost sales, where the decision maker has no access to the true demand distribution a priori and can only observe historical sales data (referred to as censored demand) and feature information about the demand. In an inventory system, excess demand is unobservable because of inventory constraints, and sales data alone cannot fully recover the true demand. Meanwhile, feature information about the demand is abundant t...
