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作者：[Anonymous]
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作者：Qu, Zihao; Dawande, Milind; Janakiraman, Ganesh
作者单位：University of Texas System; University of Texas Dallas
摘要：Motivated by the rapid growth of the cloud cost management and optimization (CCMO) industry to support the exploding cloud-computing market, we study an infinite horizon, stochastic optimization problem from the viewpoint of a firm that employs cloud resources to process incoming orders (or jobs) over time. We model the following vital practical features of CCMO in our problem. There are several types of resources that differ in their costs and performance attributes (e.g., processor speed, me...
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作者：Capponi, Agostino; Weber, Marko
作者单位：Columbia University; National University of Singapore
摘要：We study the portfolio choice problem of banks, taking into account losses due to fire-sale spillovers. We show that the optimal asset allocation can be recovered as the unique Nash equilibrium of a potential game. Our analysis highlights the key tradeoff between individual diversification and systemic risk. In a stylized model economy featuring two banks and two assets, we show that sacrificing individual diversification to reduce portfolio commonality increases the likelihood of a sale event...
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作者：Carlsson, John Gunnar; Liu, Sheng; Salari, Nooshin; Yu, Han
作者单位：University of Southern California; University of Toronto; University of Alberta; McMaster University
摘要：On-time last-mile delivery is expanding rapidly as people expect faster delivery of goods ranging from grocery to medicines. Managing on-time delivery systems is challenging because of the underlying uncertainties and combinatorial nature of the routing decision. In practice, the efficiency of such systems also hinges on the driver's familiarity with the local neighborhood. This paper studies the optimal region partitioning policy to minimize the expected delivery time of customer orders in a ...
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作者：Du, Lilun; Li, Qing; Yu, Peiwen
作者单位：City University of Hong Kong; Hong Kong University of Science & Technology; Chongqing University
摘要：We model a multiphase and high-volume recruitment process as a large-scale dynamic program. The success of the process is measured by a reward, which is the total assessment score of accepted candidates minus the penalty cost of the number of accepted candidates in the end deviating from a preset hiring target. For a recruiter, two questions are important: How many offers should be made in each phase? And how does the number of phases affect the reward? We consider an upper bound, which is obt...
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作者：Khorasani, Sina; Korpeoglu, Ersin; Krishnan, Vish V.
作者单位：University System of Ohio; University of Dayton; University of London; University College London; University of California System; University of California San Diego
摘要：Public, private, and not-for-profit organizations find advanced technology and product development projects challenging to manage due to the time and budget pressures, and turn to their development partners and suppliers to address their development needs. We study how dynamic development contests with enriched rank-based incentives and carefully tailored information design can help these organizations leverage their suppliers for their development projects while seeking to minimize project le...
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作者：Jagabathula, Srikanth; Mitrofanov, Dmitry; Vulcano, Gustavo
作者单位：New York University; Boston College; Universidad Torcuato Di Tella
摘要：To estimate customer demand, choice models rely both on what the individuals do and do not purchase. A customer may not purchase a product because it was not offered but also because it was not considered. To account for this behavior, existing literature has proposed the so-called consider-then-choose (CTC) models, which posit that customers sample a consideration set and then choose the most preferred product from the intersection of the offer set and the consideration set. CTC models have b...
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作者：Ahn, Dohyun; Chen, Nan; Kim, Kyoung-Kuk
作者单位：Chinese University of Hong Kong; Korea Advanced Institute of Science & Technology (KAIST)
摘要：Given limited network information, we consider robust risk quantification under the Eisenberg-Noe model for financial networks. To be more specific, motivated by the fact that the structure of the interbank network is not completely known in practice, we propose a robust optimization approach to obtain worst-case default probabilities and associated capital requirements for a specific group of banks (e.g., systemically important financial institutions) under network information uncertainty. Us...
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作者：Alon, Tal; Talgam-Cohen, Inbal; Lavi, Ron; Shamash, Elisheva
作者单位：Technion Israel Institute of Technology; University of Bath; Keele University
摘要：We study contract design for welfare maximization in the well-known common agency model introduced in 1986 by Bernheim and Whinston. This model combines the challenges of coordinating multiple principals with the fundamental challenge of contract design: that principals have incomplete information of the agent's choice of action. Our goal is to design contracts that satisfy truthfulness of the principals, welfare maximization by the agent, and two fundamental properties of individual rationali...
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作者：Jagabathula, Srikanth; Rusmevichientong, Paat; Venkataraman, Ashwin; Zhao, Xinyi
作者单位：New York University; University of Southern California; University of Texas System; University of Texas Dallas
摘要：We describe an efficient estimation method for large-scale tree logit models, using a novel change-of-variables transformation that allows us to express the negative log-likelihood as a strictly convex function in the leaf node parameters and a difference of strictly convex functions in the nonleaf node parameters. Exploiting this representation, we design a fast iterative method that computes a sequence of parameter estimates using simple closed-form updates. Our algorithm relies only on firs...
