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作者：Xie, Yaqi; Ma, Will; Xin, Linwei
作者单位：University of Chicago; Columbia University
摘要：Real-time decisions are usually irrevocable in many contexts of online decision making. One common practice is delaying real-time decisions so that the decision maker can gather more information to make better decisions. For example, in online retailing, there is typically a time delay between when an online order is received and when it gets picked and assembled for shipping. However, decisions cannot be delayed forever. In this paper, we study this fundamental trade-off and aim to theoretica...
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作者：Luo, Shanshan; Shechter, Steven M.
作者单位：University of British Columbia
摘要：Mass vaccination is essential for epidemic control, but long queues can increase infection risk. We study how to schedule arrivals at a mass vaccination center to minimize a tri-objective function of (a) the expected number of infections acquired while waiting, (b) throughput, and (c) overtime. Leveraging multimodularity results of a related optimization problem, we construct a solution algorithm and apply it to a case study of COVID-19. We find that although the standard equally distributed, ...
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作者：Gan, Kyra; Jia, Su; Li, Andrew; Tayur, Sridhar
作者单位：Cornell University; Cornell University; Carnegie Mellon University
摘要：This paper addresses challenges in developing liquid biopsies for early-stage cancer detection through active sequential hypothesis testing (ASHT). In the problem of ASHT, a learner seeks to identify the true hypothesis (true cancer type) from a known set of hypotheses (candidate cancer types). The learner is given a set of actions (sequencing genetic intervals) and knows the distribution of the random outcome (whether a mutation is detected) of any action under any true hypothesis. Given a ta...
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作者：Aouad, Ali; Deshmane, Abhishek; Martinez-de-Albenizc, Victor
作者单位：Massachusetts Institute of Technology (MIT); University System of Georgia; Georgia Institute of Technology; University of Navarra; IESE Business School
摘要：A fundamental issue faced by experience providers-ranging from retail to culture-is displaying a collection of items for physical and digital interactions. The arrangement of the exhibits in different locations, which we call the layout, affects the visitors' choices over time and space, thereby driving their engagement with the offered experience. In a collaboration with the Van Gogh Museum (Netherlands), we develop a predict-then-optimize framework to inform such operational decisions. First...
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作者：Chen, Li; Lee, Hau; Yao, Shiqing
作者单位：Cornell University; Stanford University; Monash University
摘要：Using agile supply chains, fast fashion companies have been viewed as best practice examples in industries. Prior research focuses on how agility can equip such companies with strong sense-and-respond capabilities to identify and fulfill unpredictable customer demands. There is another powerful dimension of agility-the ability to create new products frequently-that has enabled recent market success of companies such as Shein and Temu, labeled by some industry press as ultra-fast fashion. These...
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作者：Ferreira, Petrus; Landsman, Wayne R.; Rountree, Brian
作者单位：Rice University; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine
摘要：This study finds that the requirement of Accounting Standard Codification (ASC) 842 for firms to capitalize operating leases in financial statements beginning in 2019 resulted in firms affected by the standard reducing the reliance on existing debt (debt not associated with the capitalization of operating leases) by 7%-10% on average relative to unaffected firms. We find that firms with greater operating lease capitalization as a result of implementation of ASC 842 have the largest reductions ...
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作者：Weber, Thomas A.
作者单位：Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne
摘要：For a general multicriteria decision problem with linear scalarization and unknown weights, we propose relatively robust decisions, which are Pareto-efficient and at the same time maximize a performance index. The latter measures the worst-case ratio, attained by the weighted objective relative to its maximum value, with respect to all possible weights. The main results include a simple boundary representation of the performance index as the minimum of criterion-specific performance ratios, an...
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作者：Hakimov, Rustamdjan; Raghavan, Madhav
作者单位：University of Lausanne
摘要：Students participating in centralized admissions procedures do not typically have access to the information used to determine their matched school, such as other students' preferences or school priorities. This can lead to doubts about whether their matches were computed correctly (the verifiability problem) or, at a deeper level, whether the promised admissions procedure was even used (the transparency problem). In a model that spans many popular applications, we show how these problems can b...
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作者：Neuhierl, Andreas; Tang, Xiaoxiao; Varneskov, Rasmus T.; Zhou, Guofu
作者单位：Purdue University System; Purdue University; University of Texas System; University of Texas Dallas; Copenhagen Business School; Danish Finance Institute; Washington University (WUSTL)
摘要：We provide a comprehensive analysis of option-implied information for predicting the cross-section of stock returns. Based on large sets of firm and option characteristics and using traditional portfolio sorts and modern high-dimensional methods, we find that option information matters. However, in contrast to existing studies, there are only a few option characteristics that have significant incremental predictive power after controlling for the large set of firm characteristics. Further anal...
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作者：Cao, Tunyu; Leng, Yan
作者单位：University of Texas System; University of Texas Austin
摘要：The recent surge in the popularity of short-form video (SFV) on digital platforms has led to massive numbers of videos and ever-evolving topics. As a result, the task of making personalized recommendations has become increasingly challenging. We introduce a new pure exploration problem on SFV platforms: finding a (K, EH, EL)-optimal set that includes all recommendations within the EL-optimality gap and that excludes those beyond the EH-optimality gap relative to the best arm with a capacity li...
