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作者：Simchi-Levi, David
作者单位：Massachusetts Institute of Technology (MIT)
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作者：Rothkopf, Michael H.
作者单位：Rutgers University System; Rutgers University New Brunswick; Rutgers University System; Rutgers University New Brunswick
摘要：In theory, the mathematically elegant Vickrey-Clarke-Groves process offers perfect efficiency with dominant truth-revealing strategies. However, it has many serious practical problems. This paper describes these problems and argues that research that aims to maintain the dominant truth-revealing strategies while compromising on the other practical issues is of limited practical value.
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作者：Lim, Andrew E. B.; Shanthikumar, J. George
作者单位：University of California System; University of California Berkeley
摘要：In the area of dynamic revenue management, optimal pricing policies are typically computed on the basis of an underlying demand rate model. From the perspective of applications, this approach implicitly assumes that the model is an accurate representation of the real-world demand process and that the parameters characterizing this model can be accurately calibrated using data. In many situations, neither of these conditions are satisfied. Indeed, models are usually simplified for the purpose o...
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作者：Correa, Jose R.; Schulz, Andreas S.; Stier-Moses, Nicolas E.
作者单位：Universidad Adolfo Ibanez; Massachusetts Institute of Technology (MIT); Columbia University
摘要：We study the problem of minimizing the maximum latency of flows in networks with congestion. We show that this problem is NP-hard, even when all arc latency functions are linear and there is a single source and sink. Still, an optimal flow and an equilibrium flow share a desirable property in this situation: All flow-carrying paths have the same length, i.e., these solutions are fair, which is in general not true for optimal flows in networks with nonlinear latency functions. In addition, the ...
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作者：Tsetlin, Ilia; Winkler, Robert L.
作者单位：INSEAD Business School; Duke University
摘要：In many situations, performance on several attributes is important. Moreover, a decision maker's utility may depend not on the absolute level of performance on each attribute, but rather on whether that level of performance meets a target, in which case the decision maker is said to be target oriented. For example, typical attributes in new product development include cost, quality, and features, and the corresponding targets might be the best performance on these attributes by competing produ...
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作者：Tseng, Chung-Li; Lin, Kyle Y.
作者单位：University of Missouri System; Missouri University of Science & Technology; United States Department of Defense; United States Navy; Naval Postgraduate School
摘要：In this paper, we use a real-options framework to value a power plant. The real option to commit or decommit a generating unit may be exercised on an hourly basis to maximize expected profit while subject to intertemporal operational constraints. The option-exercising process is modeled as a multistage stochastic problem. We develop a framework for generating discretetime price lattices for two correlated Ito processes for electricity and fuel prices. We show that the proposed framework exceed...
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作者：Bertsimas, Dimitris; Shioda, Romy
作者单位：Massachusetts Institute of Technology (MIT); University of Waterloo
摘要：Motivated by the significant advances in integer optimization in the past decade, we introduce mixed-integer optimization methods to the classical statistical problems of classification and regression and construct a software package called CRIO (classification and regression via integer optimization). CRIO separates data points into different polyhedral regions. In classification each region is assigned a class, while in regression each region has its own distinct regression coefficients. Com...
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作者：Ye, Qing; Duenyas, Izak
作者单位：Tsinghua University; University of Michigan System; University of Michigan
摘要：In this paper, we consider the optimal management of capacity when a firm faces fixed costs and variable costs to purchase capacity. The firm can also salvage capacity and receive a variable value per unit capacity salvaged, but faces a (different) fixed cost in this case. Each period, the firm faces a stochastic demand, and maintenance costs for capacity that it decides to keep. The firm would thus like to decide how much capacity it should purchase or salvage each period. We introduce a new ...
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作者：Semple, John
作者单位：Southern Methodist University
摘要：We introduce a generalization of K-concavity termed weak (K-1, K-2)-concavity and show how it can be used to analyze certain dynamic systems arising in capacity management. We show that weak (K-1, K-2)-concavity has two fundamental properties that are relevant for the analysis of such systems: First, it is preserved for linear interpolations; second, it is preserved for certain types of linear extensions. In capacity management problems where both buying and selling capacity involve a fixed co...
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作者：Anily, Shoshana; Haviv, Moshe
作者单位：Tel Aviv University; Hebrew University of Jerusalem
摘要：We consider an infinite-horizon deterministic joint replenishment problem with first order interaction. Under this model, the setup transportation/reorder cost associated with a group of retailers placing an order at the same time equals some group-independent major setup cost plus retailer-dependent minor setup costs. In addition, each retailer is associated with a retailer-dependent holding-cost rate. The structure of optimal replenishment policies is not known, thus research has focused on ...
