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作者：Varma, Sushil Mahavir; Bumpensanti, Pornpawee; Maguluri, Siva Theja; Wang, He
作者单位：University System of Georgia; Georgia Institute of Technology
摘要：Motivated by applications from gig economy and online marketplaces, we study a two-sided queueing system under joint pricing and matching controls. The queueing systemismodeled by a bipartite graph, where the vertices represent customer or server types and the edges represent compatible customer-server pairs. Both customers and servers sequentially arrive to the system and join separate queues according to their types. The arrival rates of different types depend on the prices set by the system...
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作者：Long, Daniel Zhuoyu; Sim, Melvyn; Zhou, Minglong
作者单位：Chinese University of Hong Kong; National University of Singapore; Fudan University
摘要：We present a general framework for robust satisficing that favors solutions for which a risk-aware objective function would best attain an acceptable target even when the actual probability distribution deviates from the empirical distribution. The satisficing decision maker specifies an acceptable target, or loss of optimality compared with the empirical optimization model, as a trade-off for the model's ability to withstand greater uncertainty. We axiomatize the decision criterion associated...
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作者：Lim, Eunji; Glynn, Peter W.
作者单位：Adelphi University; Stanford University
摘要：This paper is concerned with the use of simulation in computing predictors in settings in which real-world observations are collected. A major challenge is that the state description underlying the simulation will typically include information that is not observed in the real system. This makes it challenging to initialize simulations that are aligned with the most recent observation collected in the real-world system, especially when the simulation does not visit the most recently observed va...
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作者：Loehndorf, Nils; Wozabalb, David
作者单位：University of Luxembourg; Technical University of Munich
摘要：We consider the problem of a storage owner who trades in a multisettlement electricity market comprising an auction-based day-ahead market and a continuous intraday market. We show in a stylized model that a coordinated policy that reserves capacity for the intraday market is optimal and that the gap to a sequential policy increases with intraday price volatility and market liquidity. To assess the value of coordination in a realistic setting, we develop amultistage stochastic programfor day-a...
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作者：Xie, Jingui; Loke, Gar Goei; Sim, Melvyn; Lam, Shao Wei
作者单位：Technical University of Munich; Erasmus University Rotterdam; Erasmus University Rotterdam - Excl Erasmus MC; National University of Singapore
摘要：Bed shortages in hospitals usually have a negative impact on patient satisfaction and medical outcomes. In practice, healthcare managers often use bed occupancy rates (BORs) as a metric to understand bed utilization, which is insufficient in capturing the risk of bed shortages. We propose the bed shortage index (BSI) to capture more facets of bed shortage risk than traditional metrics such as the occupancy rate, the probability of shortages, and expected shortages. The BSI is based on the risk...
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作者：Hathaway, Brett A.; Kagan, Evgeny; Dada, Maqbool
作者单位：Johns Hopkins University
摘要：In many service encounters, frontline workers ( often referred to as gatekeepers) have the discretion to attempt to resolve a customer request or to transfer the customer to an expert service provider. Motivated by an incentive redesign at a call center of a midsize U.S.-based bank, we formulate and solve an analytical model of the gate-keeper's transfer response to different incentive schemes and congestion levels. We then test several model predictions experimentally. Our experiments show th...
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作者：Li, Wenhao; Sun, Zhankun; Hong, L. Jeff
作者单位：City University of Hong Kong; Fudan University
摘要：Upon arrival at emergency departments (EDs), patients are classified into different triage levels indicating their urgency. Using data from a large hospital in Canada, we find that, within the same triage level, the average waiting time (time from triage to initial assessment by a physician) of patients who are discharged is shorter than that of patients who are admitted for middle- and low-acuity patients, suggesting that the order in which patients are served deviates from first-come, first-...
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作者：Bachmat, Eitan; Erland, Sveinung; Jaehn, Florian; Neumann, Simone
作者单位：Ben-Gurion University of the Negev; Simons Foundation; Western Norway University of Applied Sciences; Helmut Schmidt University
摘要：Managerial optimization challenges in service industries often entail the need to ensure customer satisfaction. For example, in airplane boarding, the boarding time should be minimized, but to ensure customer satisfaction, the process must not be too stressful for passengers. However, many authors assume that total boarding time minimization and customer satisfaction are complementary goals, even though there is little empirical knowledge on the topic. We challenge this assumption and contend ...
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作者：Yoo, Onesun Steve; Zhan, Dongyuan
作者单位：University of London; University College London
摘要：A critical issue in operating massive open online courses (MOOCs) is the scalability of providing feedback. Because it is not feasible for instructors to grade a large number of students' assignments, MOOCs use peer grading systems. This study investigates the efficacy of that practice when student graders are rational economic agents. We characterize grading as a process of (a) acquiring information to assess an assignment's quality and (b) reporting a score. This process entails a tradeoff b...
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作者：He, Xue Dong; Strub, Moris S.
作者单位：Chinese University of Hong Kong; Southern University of Science & Technology; Southern University of Science & Technology
摘要：We study the implications of various models of partially endogenous reference point formation on optimal decision making in the context of portfolio optimization under loss aversion. Specifically, we first consider the partially endogenous model of De Giorgi and Post [Management Science (2011) 57(6):1094-1110], where the reference point is determined in equilibrium but contains an exogenous component. We find that optimal trading behavior is as if the reference point were completely exogenous ...
