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作者：Bertsimas, Dimitris; Cory-Wright, Ryan; Digalakis, Vassilis
作者单位：Massachusetts Institute of Technology (MIT); Imperial College London; Hautes Etudes Commerciales (HEC) Paris
摘要：Problem definition: We present our collaboration with the OCP Group, one of the world's largest producers of phosphate and phosphate-based products, in support of a green initiative designed to reduce OCP's carbon emissions significantly. We study the problem of decarbonizing OCP's electricity supply by installing a mixture of solar panels and batteries to minimize its time-discounted investment cost, plus the cost of satisfying its remaining demand via the Moroccan national grid. OCP is curre...
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作者：Park, Eric; Ouyang, Huiyin; Wang, Jingqi; Savin, Sergei; Leung, Siu Chung; Rainer, Timothy H.
作者单位：Wake Forest University; University of Hong Kong; The Chinese University of Hong Kong, Shenzhen; University of Pennsylvania; University of Hong Kong
摘要：Problem definition: Emergency department (ED) delay announcement systems are implemented in many countries. We answer three important questions pertaining to the operations and effectiveness of such systems by studying the public hospital network and ED waiting time (WT) announcement system in Hong Kong's universal public healthcare system: (1) How many patients are aware of (and sensitive to) the ED WT announcements? (2) How sensitive are these patients to the announced WT? (3) How can the Ho...
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作者：Chan, Timothy C. Y.; Mahmood, Rafid; O'Connor, Deborah L.; Stone, Debbie; Unger, Sharon; Wong, Rachel K.; Zhu, Ian Yihang
作者单位：University of Toronto; University of Ottawa; University of Toronto; University of Toronto; Sinai Health System Toronto; University of Toronto; Sinai Health System Toronto; National University of Singapore
摘要：Problem definition: Human donor milk provides critical nutrition for millions of infants who are born preterm each year. Donor milk is collected, processed, and distributed by milk banks. The macronutrient content of donor milk is directly linked to infant brain development and can vary substantially across donations, which is why multiple donations are typically pooled together to create a final product. Approximately half of all milk banks in North America do not have the resources to measur...
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作者：Iancu, Dan A.; Yang, S. Alex
作者单位：Stanford University; University of London; London Business School
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作者：Huang, Jinjia; Teo, Chung-Piaw; Wang, Fan; Xu, Zhou
作者单位：National University of Singapore; National University of Singapore; Sun Yat Sen University; Hong Kong Polytechnic University
摘要：Problem definition: In many resource scheduling problems for services with scheduled starting and completion times (e.g., airport gate assignment), a common approach is to maintain appropriate buffer between successive services assigned to a common resource. With a large buffer, the chances of a crossing (i.e., a flight arriving later than the succeeding one at the gate) will be significantly reduced. This approach is often preferred over more sophisticated stochastic mixed-integer programming...
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作者：Lai, Guoming; Ritchken, Peter; Wu, Qi
作者单位：University of Texas System; University of Texas Austin; University System of Ohio; Case Western Reserve University; University System of Ohio; Case Western Reserve University
摘要：Problem definition: Modern technologies have made it viable for firms to lower the costs of switching on and off production in response to market changes. In this paper, we explore how production start-stop flexibility impacts joint operating policies, financing, and investment timing decisions. Methodology/results: We develop a continuous-time, optimal stopping model in which equity holders of the firm make operational decisions regarding pausing and restarting production as well as when to d...
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作者：Tang, Sammi Y.; Song, Jing-Sheng
作者单位：University of Miami; Duke University
摘要：Problem definition: Guided delegation, a practice in which companies provide guidelines when delegating supplier management to tier 1 firms, is a common practice in managing complex supply chains. We study the benefits and risks of this approach in a three-tier supply chain setting consisting of a buying firm, a tier 1 contract manufacturer, and tier 2 suppliers, where responsibility risk stems from the tier 2 suppliers. We analyze the buyer's profit and the supply chain's responsibility risk ...
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作者：Huang, Herbie; Sunar, Nur; Swaminathan, Jayashankar M.; Roy, Rahul
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: Customer reviews are essential to online marketplaces. However, reviews typically vary; ratings of a product or service are rarely the same. In many service marketplaces, including the ones for solar panel installations, supply-side participants are active. That is, a seller must make a proposal to serve each customer. In such marketplaces, it is not clear how (or if) the dispersion in customer reviews affects the seller activity level and number of matches in the marketpla...
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作者：Zhang, Can; Ayer, Turgay; White, Chelsea C.
作者单位：Duke University; University System of Georgia; Georgia Institute of Technology
摘要：Problem definition: Motivated by a platelet inventory management problem, we study a fixed lifetime perishable inventory management problem under a general demand process. Determining an optimal ordering policy for perishable inventory systems is particularly challenging because of the well-known curse of dimensionality. Approximation policies with worst-case performance bounds have been developed in the literature for perishable inventory systems. However, using real data, we observe that the...
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作者：Wang, Zhihan (Helen); Li, Jun; Wu, Di (Andrew)
作者单位：University of Michigan System; University of Michigan
摘要：Problem definition: Education technology innovations, such as massive open online course (MOOC) platforms, could potentially enable a more inclusive learning environment by delivering education to traditionally disadvantaged learners, like women. However, inclusivity does not necessarily translate into equal treatment on the platform. We investigate whether female and male learners benefit equally from forum discussions- typically the only form of interaction available-in online learning platf...
