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作者：Xing, Wenqian; Hua, Cheng
作者单位：Stanford University; Shanghai Jiao Tong University
摘要：Ambulance offload delays occur when emergency medical service (EMS) personnel are unable to promptly transfer patients to overwhelmed emergency departments. These delays postpone necessary care for the patient and hinder the EMS system from attending to new emergencies. This study introduces a real-time multi-priority patient transfer policy aimed at reducing these delays. We model the patient transfer problem as a stochastic dynamic program based on post-decision states, and develop approxima...
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作者：Fu, Qi; Li, Zhaolin; Teo, Chung-Piaw
作者单位：University of Macau; University of Sydney; National University of Singapore
摘要：In the post-pandemic era, multi-sourcing is rapidly becoming the preferred approach for companies to drive optimized cost, quality and turnaround times. However, multi-sourcing systems present a myriad of challenges in designing an effective planning model. In this article, we propose a robust capacity planning model with multiple supply sources, and demonstrate how the capacity plan can be efficiently solved via a parsimonious mean-variance approach. We apply the max-min criterion to design a...
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作者：Pan, Xiru; Yaraghi, Niam
作者单位：University of Miami; University of Miami; University of Miami; Brookings Institution
摘要：In the United States, the lack of competition within the healthcare market is notably influenced by the opacity of service pricing, leading to unchecked price increases without improvements in service quality. The hospital price transparency rule, implemented on January 1, 2021, seeks to address this by requiring the disclosure of prices, aiming to stimulate competition and lower costs. Yet, the policy's effect on hospital charges and consumer behavior remains largely unexplored. This study em...
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作者：Li, F.; Lo, C. K. Y.; Tang, C. S.; Zhou, P.
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作者：Moradi, Shahryar; Saure, Antoine; Patrick, Jonathan
作者单位：University of Ottawa
摘要：This study examines a patient scheduling problem with multiple appointment types and priority levels, where certain appointments must precede others and lead times play a crucial role. Although both factors significantly influence the quality of care-particularly when specialist assessments depend on timely diagnostic tests-they have been largely overlooked in existing healthcare scheduling models. To address this gap, we propose a dynamic scheduling model that explicitly incorporates appointm...
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作者：El Hajj, Hussein; Bish, Douglas R.; Bish, Ebru K.
作者单位：Santa Clara University; University of Alabama System; University of Alabama Tuscaloosa
摘要：Newborn screening (NBS) plays a key role in detecting life-threatening genetic disorders, with cystic fibrosis (CF) being a prominent example. Having CF requires both copies of the CFTR gene (one inherited from each parent) to be pathogenic variants. With over 1,000 CF-causing variant types, a genetic test that can detect enough variant types for sufficient screening accuracy is expensive and capacity-constrained. Consequently, in the US, the first tier of testing uses an inexpensive biochemic...
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作者：Guo, Qiuwei; Li, Yifu; Liu, Lindong; Sheng, Lifei
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS; University of Houston System; University of Houston Clear Lake; University of Houston
摘要：Training is an important business in the service sector. Usually, a training program involves multiple sessions and each session contains multiple activities. Although it is essential for customers to participate in all training sessions and activities, many customers fail to complete the program because the training experience is too stressful. Given the importance of customer retention in the training programs, we investigate the modeling and optimization of the retention-oriented training p...
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作者：Zhao, Xi; Wu, Zhichao; Shang, Guangzhi; Ai, Peilin
作者单位：Xi'an Jiaotong University; Arizona State University; Arizona State University-Tempe
摘要：A transaction fee is fundamental in maintaining the stability and decentralization of a permissionless blockchain, the infrastructure underlying major cryptocurrency networks such as Ethereum and Bitcoin. This fee, set and paid by users when initiating each transaction, aggregates to over $24 million daily on Ethereum, imposing a nontrivial barrier to wider adoption. What is worse is that it is disproportionately borne by small users. Like Bitcoin, Ethereum started with a name-your-own-price s...
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作者：Wang, Peng; Zhang, Haozhao; Zhang, Zhe (James)
作者单位：Northwestern Polytechnical University; The Chinese University of Hong Kong, Shenzhen; University of Texas System; University of Texas Dallas
摘要：This study examines a ridesharing platform's choice among two quality-dependent compensation schemes for drivers when the market is oversupplied, that is, there are more drivers than riders at a given time. We examine an information asymmetric context in which drivers (high and low cost) have different costs to improve service quality, which is private information. The platform designs a menu of contracts for drivers to reveal their type. In the assigning-differentiation compensation scheme, t...
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作者：Li, Meng; Wang, Shuming; Xu, Liang
作者单位：University of Houston; University of Houston System; University of Houston; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Singapore Management University
摘要：This study examines the impact of a replenishment recommendation system on inventory management in convenience stores. We collaborate with a convenience store chain to implement the system in some locations while leaving others unchanged. We find that the introduction of the system increases reorder points and reduces order size, leading to a 2.9% improvement in service levels without requiring additional inventory and without negatively affecting sales or revenue. Additionally, it reduces man...
