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作者：Fang, Xin; Cho, Soo-Haeng
作者单位：Singapore Management University; Carnegie Mellon University
摘要：This paper studies a cooperative game of inventory transshipment among multiple firms. In this game, firms first make their inventory decisions independently and then decide collectively how to transship excess inventories to satisfy unmet demands. In modeling transshipment, we use networks of firms as the primitive, which offer a richer representation of relationships among firms by taking the coalitions used in all previous studies as special cases. For any given cooperative network, we cons...
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作者：Jasin, Stefanus
作者单位：University of Michigan System; University of Michigan
摘要：We consider a standard dynamic pricing problem with finite inventories, finite selling horizon, and stochastic demands, where the objective of the seller is to maximize total expected revenue. We introduce a simple improvement of the popular static price control known in the literature. The proposed heuristic only requires a single optimization at the beginning of the selling horizon and does not require any reoptimization at all. This provides an advantage over the potentially heavy computati...
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作者：Debo, Laurens; Veeraraghavan, Senthil
作者单位：University of Chicago; University of Pennsylvania
摘要：In the operations research literature, the queue joining probability is monotonic decreasing in the queue length; the longer the queue, the fewer consumers join. Recent academic and empirical evidence indicates that queue-joining probabilities may not always be decreasing in the queue length. We provide a simple explanation for these nonmonotonic queue-joining strategies by relaxing the informational assumptions in Naor's model. Instead of imposing that the expected service time and service va...
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作者：Yang, Yi; Chen, Youhua (Frank); Zhou, Yun
作者单位：Zhejiang University; City University of Hong Kong; University of Toronto
摘要：In this paper we investigate joint pricing and inventory control problems in a finite-horizon, single-product, periodic-review setting with certain/uncertain supply capacities. The demands in different periods are random variables whose distributions depend on the posted price exhibiting the additive form. The order quantity in each period is required to be of integral multiples of a given specific batch size (denoted by Q). Inventory replenishment incurs a linear ordering cost. Referred to as...
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作者：Gallego, Guillermo; Wang, Ruxian
作者单位：Columbia University; Johns Hopkins University
摘要：We study firms that sell multiple substitutable products and customers whose purchase behavior follows a nested logit model, of which the multinomial logit model is a special case. Customers make purchasing decisions sequentially under the nested logit model: they first select a nest of products and subsequently purchase one within the selected nest. We consider the multiproduct pricing problem under the general nested logit model with product-differentiated price sensitivities and arbitrary n...
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作者：Lien, Robert W.; Iravani, Seyed M. R.; Smilowitz, Karen R.
作者单位：Northwestern University
摘要：This paper studies a sequential resource allocation problem motivated by distribution operations of a nonprofit organization. The alternate objectives that arise in nonprofit (as opposed to commercial) operations lead to new variations on traditional problems in operations research and inventory management. Specifically, we consider the problem of distributing a scarce resource to meet customers' demands that are observed sequentially. An allocation policy that seeks to maximize profit may lea...
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作者：Jiang, Hai; Qi, Xin; Sun, He
作者单位：Tsinghua University
摘要：Recommender systems have been widely used by online stores to suggest items of interest to users. These systems often identify a subset of items from a much larger set that best matches the user's interest. A key concern with existing approaches is overspecialization, which results in returning items that are too similar to each other. Unlike existing solutions that rely on diversity metrics to reduce similarity among recommended items, we propose using choice probability to measure the overal...
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作者：Maxwell, Matthew S.; Ni, Eric Cao; Tong, Chaoxu; Henderson, Shane G.; Topaloglu, Huseyin; Hunter, Susan R.
作者单位：Cornell University; Purdue University System; Purdue University
摘要：Ambulance redeployment is the practice of repositioning ambulance fleets in real time in an attempt to reduce response times to future calls. When redeployment decisions are based on real-time information on the status and location of ambulances, the process is called system-status management. An important performance measure is the long-run fraction of calls with response times over some time threshold. We construct a lower bound on this performance measure that holds for nearly any ambulance...
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作者：Graczova, Darina; Jacko, Peter
作者单位：Comenius University Bratislava; Lancaster University; Basque Center for Applied Mathematics (BCAM)
摘要：In this paper we introduce the knapsack problem for perishable inventories concerning the optimal dynamic allocation of a collection of products to a limited knapsack. The motivation for designing such a problem comes from retail revenue management, where different products often have an associated lifetime during which they can only be sold, and the managers can regularly select some products to be allocated to a limited promotion space that is expected to attract more customers than the stan...
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作者：Caprara, Alberto; Galli, Laura; Stiller, Sebastian; Toth, Paolo
作者单位：University of Bologna; University of Pisa; Technical University of Berlin
摘要：Robust optimisation is a well-established concept to deal with uncertainty. In particular, recovery-robust models are suitable for real-world contexts, where a certain amount of recovery-although limited-is often available. In this paper we describe a general framework to optimise event-based problems against delay propagation. We also present a real-world application to train platforming in the Italian railways in order to show the practical effectiveness of our framework.
