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作者：Carlsson, John Gunnar; Lim, Stanley Frederick W. T.; Liu, Sheng; Yu, Han
作者单位：University of Southern California; Michigan State University; Michigan State University's Broad College of Business; University of Toronto
摘要：Problem definition: Parcel logistics companies use zoning systems to manage last-mile delivery operations. This practice divides a service area into zones, each served by its own station and drivers. Designing an optimal zoning policy is challenging because the practical service area often includes many customer locations, and vehicle routing problems (VRPs) should be incorporated as a subroutine. Existing methods have limitations in modeling practical fleets with diverse vehicle types and bro...
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作者：Jiang, Yangzi; Lu, Lauren Xiaoyuan; Van Mieghem, Jan Albert
作者单位：The Chinese University of Hong Kong, Shenzhen; Dartmouth College; Northwestern University
摘要：Problem definition: U.S. nursing homes allocate federal licensed beds among three categories: Medicare-dedicated beds, Medicaid-dedicated beds, and flexible beds for both populations. This article studies how nonprofit and for-profit nursing homes make bed allocation decisions and how this affects access to care for the economically disadvan-taged Medicaid population. Methodology/results: Analyzing U.S. nursing home data dur-ing 2012-2017, we observe that nonprofit nursing homes on average had...
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作者：Wang, Liangquan; Guo, Sichen; Yang, Chaolin
作者单位：Anhui University of Finance & Economics; Shanghai University of Finance & Economics
摘要：Problem definition: This paper investigates a periodically reviewed distribution inventory system where a central warehouse replenishes multiple retailers facing uncertain demand. Only moment information about demand at each retailer is available, and unmet demand is backlogged. Methodology/results: We develop a robust multiperiod inventory model for the system based on the central limit theorem-based uncertainty set and transform the inventory planning problem into a transportation problem. W...
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作者：Eom, Myungeun; Toriello, Alejandro
作者单位：University System of Georgia; Georgia Institute of Technology
摘要：Problem definition: We study a dynamic nonbipartite stochastic matching problem, where nodes appear following a type-specific independent distribution and wait in the system for a given sojourn time. This problem is motivated by applications in ride-sharing and freight transportation marketplaces and is related to other on-demand marketplaces. Methodology/results: We study the asymptotic properties of two widely used policies, batching and greedy, by analyzing a single-pair case and then conve...
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作者：Jin, Chen; Hosanagar, Kartik; Veeraraghavan, Senthil
作者单位：National University of Singapore; University of Pennsylvania
摘要：Problem definition: The bilateral rating display system (BRDS), popularized by ride-sharing platforms, shows riders' ratings to drivers when the driver receives an order dispatched by the platform. This contrasts with traditional business settings where only the service providers' ratings are displayed to customers (unilateral rating display system (URDS)). Although BRDS allows drivers to make more informed decisions, it also poses challenges, such as the potential for drivers to reject riders...
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作者：Gong, Chenyin; Li, Qing
作者单位：Hong Kong University of Science & Technology
摘要：Problem definition: We study a rolling recruitment process in which applicants leave the system stochastically. Applicants arrive randomly over time, and each applicant is available for a random amount of time after they arrive. In each period, the recruiter must decide whether to stop or to wait. If the recruiter stops, he or she needs to determine how many offers to make and whom to make offers to, and the applicants who do not receive an offer will leave the system. If the recruiter waits, ...
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作者：Ke, Chenxu; Wang, Ruxian; Zhao, Zifeng
作者单位：Shanghai University of Finance & Economics; Johns Hopkins University; University of Notre Dame
摘要：Problem definition: This paper incorporates a piecewise linear structure into the utility-price relationship of the classic multinomial logit (MNL) model and studies the associated operations problems such as estimation and pricing. Methodology/results: The derived model is referred to as the piecewise MNL model. We study its model identification and further propose a maximum likelihood estimator (MLE) for its calibration by real data. Because the presence of inflection points, the log-likelih...
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作者：Li, Jingyan; Zheng, Quan; Li, Shichang; Wu, Jie; Shi, Duo
作者单位：University of International Business & Economics; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Anhui University; The Chinese University of Hong Kong, Shenzhen
摘要：Problem definition: There has been a fierce debate among practitioners regarding ad blockers. On one hand, ad blockers are considered a serious threat to content platforms because advertising is a key revenue driver. On the other hand, people argue that ad blockers improve the advertising industry by pushing the creation of more attractive ads. This paper investigates the impact of ad blockers on a content platform when the advertiser's ad quality decision is taken into account. Methodology/re...
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作者：Byrd, Eleanor; Parker, Chris; Balasubramanian, Karthik
作者单位：University of Virginia; University of Virginia; Howard University
摘要：Problem definition: Bikeshare systems are expanding worldwide, but empirical research is hindered by the lack of high-frequency data on system status. Public bikeshare data sets typically include only trip start and end records, with no information on real-time station conditions (e.g., how many bikes or docks are available). This gap in data limits the analysis of operational performance and user service levels in bikeshare systems. Methodology/results: We address this gap by collecting nearl...
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作者：Zhai, Chengcheng; Parker, Rodney; Bretthauer, Kurt Michael; Mejia, Jorge; Pedraza-Martinez, Alfonso
作者单位：University of Notre Dame; Indiana University Bloomington; Indiana University System; IU Kelley School of Business; Indiana University Bloomington
摘要：Problem definition: In rural sub-Saharan Africa, people rely on communal hand pumps for clean drinking water. These hand pumps frequently break down and require repairs. Operating under the assumption that preventive maintenance is too expensive, local nongovernmental organizations (NGOs) often face difficult decisions about where to allocate their limited resources to reduce water point downtime. NGOs could invest in gathering more functionality information so that they can use their scarce r...
