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作者：Chuang, Ya-Tang; Kim, Michael Jong
作者单位：National Cheng Kung University; University of British Columbia
摘要：We investigate Bayesian inventory control problems where parameters of the demand distribution are not known a priori but need to be learned using right-censored sales data. A Bayesian framework is adopted for demand learning, and the corresponding control problem is analyzed via Bayesian dynamic programming (BDP). In the Bayesian setting, it is known that the BDP-optimal decision is equal to the sum of the myopic-optimal decision plus a nonnegative exploration boost. The goal of this paper is...
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作者：Li, Hongmin; Webster, Scott
作者单位：Arizona State University; Arizona State University-Tempe
摘要：We examine a firm's pricing decision when managing a broad product line with the goal of optimally balancing the expected return on product investment with the revenue or profit risk associated with uncertain customer choices. We consider the multinomial logit (MNL) model and the mean-variance objective function and illustrate how the level of risk tolerance influences the firm's optimal markups. We show that the solution approach and results generalize to the nested logit (NL) choice model an...
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作者：Nadar, Emre; Akan, Mustafa; Debo, Laurens; Scheller-Wolf, Alan
作者单位：Ihsan Dogramaci Bilkent University; Carnegie Mellon University; Dartmouth College
摘要：We consider a single-product remanufacture-to-order system with multiple uncertain quality levels for used items, random procurement lead times, and lost sales. The quality level of a used item is revealed only after it is acquired and inspected; the remanufacturing cost is lower for a higher-quality item. We model this system as a Markov decision process and seek an optimal policy that specifies when a used item should be procured, whether an arriving demand for the remanufactured product sho...
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作者：Ozkan, Erhun; van Houtum, Geert-Jan
作者单位：Koc University; Eindhoven University of Technology
摘要：We study inventory and repair scheduling decisions of a maintenance service provider for repairable capital goods. Because of high downtime costs, the service provider keeps spare parts on stock to replace broken parts quickly. The service provider should determine the inventory level of spare parts for each component and the repair scheduling policy. Furthermore, in case of a stock-out, the service provider should decide whether to back-order the demand or execute an emergency repair, which i...
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作者：Aymanns, Christoph; Georg, Co-Pierre; Golubc, Benjamin
作者单位：Universite Catholique de Lille; EDHEC Business School; Northwestern University
摘要：Strategic agents choose whether to be active in networked markets. The value of being active depends on the activity choices of specific counterparties. Several markets are coupled when agents' participation decisions are complements across markets. We model the problem of an analyst assessing the robustness of coupled networked markets during a crisis-an exogenous negative payoff shock-based only on partial information about the network structure. We give conditions under which exit spirals e...
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作者：Curtis, Frank E.; Molzahn, Daniel K.; Tu, Shenyinying; Wachter, Andreas; Wei, Ermin; Wonge, Elizabeth
作者单位：Lehigh University; University System of Georgia; Georgia Institute of Technology; Northwestern University; Northwestern University; University of California System; University of California San Diego
摘要：A decomposition algorithm for solving large-scale security-constrained AC optimal power flow problems is presented. The formulation considered is the one used in the Advanced Research Projects Agency-Energy Grid Optimization Competition, Challenge 1, held from November 2018 through October 2019. Algorithmic strategies are proposed for contingency selection, fast contingency evaluation, handling complementarity constraints, avoiding issues related to degeneracy, and exploiting parallelism. The ...
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作者：Ingolfsson, Armann; Mandelbaum, Avishai; Schultz, Kenneth; Yom-Tov, Galit B.
作者单位：University of Alberta; Technion Israel Institute of Technology
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作者：Chen, Ningyuan; Gao, Pin; Kou, Steven
作者单位：University of Toronto; The Chinese University of Hong Kong, Shenzhen; Shenzhen Institute of Artificial Intelligence & Robotics for Society; Boston University
摘要：The order protect rule (OPR) in the United States generally prohibits any trade through, that is, a market order that is not executed at the best possible price among fast (electronic and automated) trading venues. By deriving upper and lower bounds for the difference in the execution costs in a dynamic model, we find that, although trade-through allows for flexible trading strategies and may benefit the liquidity demander, the benefit is insignificant in most cases, especially for small trade...
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作者：He, Wei
作者单位：Chinese University of Hong Kong
摘要：We study a project assignment problem, where a principal needs to assign multiple projects to an agent. The agent is privately informed about the cost, which could be high or low. The agent's type evolves stochastically over time. We fully characterize the optimal mechanism via a sequence of deadlines and show that the presence of the capacity constraint reduces the principal's payoff and delays the assignment of projects. In particular, as the number of projects increases, the limit optimal c...
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作者：Benjaafar, Saif; Shen, Xiaobing
作者单位：University of Minnesota System; University of Minnesota Twin Cities
摘要：We consider the dynamic pricing problem that arises in the context of an on demand vehicle sharing system with one-way trips. Existing results show that a static pricing policy that arises from solving a maximum flow relaxation of the problem guarantees a performance ratio that is bounded by K/(N+ K-1) when travel times are negligible and by root ffiffififfi 1 O(1/ K ) otherwise, where K is the number of vehicles and N is the number of locations. In this paper, we build on these results by pro...
