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作者：Raffensperger, John F.; Milke, Mark W.; Read, E. Grant
作者单位：University of Canterbury; University of Canterbury
摘要：Efficient management of water requires balancing environmental needs, externality considerations, and economic efficiency. Toward that end, this paper presents a deterministic linear program that could be used to operate a smart spot market for groundwater. The market design uses the existing hydrological programs MODFLOW and GWM along with standard linear programming methods. In principle, a market could be set up anywhere that a MODFLOW model is available. The market design has parallels to ...
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作者：Bassamboo, Achal; Kumar, Sunil; Randhawa, Ramandeep S.
作者单位：Northwestern University; Stanford University; University of Texas System; University of Texas Austin
摘要：We study a rental system where a fixed number of heterogeneous users rent one product at a time from a collection of reusable products. The online DVD rental firm Netflix provides the motivation. We assume that rental durations of each user are independent and identically distributed with finite mean. We study transient behavior in this system following the introduction of a new product that is desired by all the users. We represent the usage process for this new product in terms of an empiric...
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作者：Rudi, Nils; Groenevelt, Harry; Randall, Taylor R.
作者单位：INSEAD Business School; University of Rochester; Utah System of Higher Education; University of Utah
摘要：This paper investigates the effect of using an end-of-period accounting scheme for inventory-related costs when costs actually accrue in continuous time. Using a simple model, we show that (i) the end-of-period scheme results in higher than optimal order-up-to levels and inventory cost if the cost and demand parameters are unchanged, and (ii) it is possible to replicate both the optimal base-stock level and its cost by selecting the values of the cost or demand parameters judiciously. The cost...
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作者：Abbas, Ali E.
作者单位：University of Illinois System; University of Illinois Urbana-Champaign
摘要：We introduce the notion of a multiattribute utility copula that expresses any (i) continuous; (ii) bounded multiattribute utility function that is (iii) nondecreasing with each of its arguments, and (iv) strictly increasing with each argument for at least one reference value of the complement attributes, in terms of single-attribute utility assessments. This formulation provides a wealth of new functional forms that can be used to model preferences over utility-dependent attributes and enables...
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作者：Janakiraman, Ganesh; Muckstadt, John A.
作者单位：New York University; Cornell University
摘要：We study a class of two-echelon serial systems with identical ordering/production capacities or limits for both echelons. Demands are assumed to be integer valued. For the case where the lead time to the upstream echelon is one period, the optimality of state-dependent modified echelon base-stock policies is proved using a decomposition approach. For the case where the upstream lead time is two periods, we introduce a new class of policies called two-tier base-stock policies, and prove their o...
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作者：Chen, Xin
作者单位：University of Illinois System; University of Illinois Urbana-Champaign
摘要：Consider a distribution system consisting of a set of retailers facing a single-period price-dependent demand of a single product. By taking advantage of the risk-pooling effect and the quantity/volume discount provided by suppliers or third-party carriers, the retailers may place joint orders and keep inventory at central warehouses before demand realization, and allocate inventory among themselves after demand realization to reduce their operating costs. Under rather general assumptions, we ...
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作者：Besbes, Omar; Zeevi, Assaf
作者单位：University of Pennsylvania; Columbia University
摘要：We consider a single-product revenue management problem where, given an initial inventory, the objective is to dynamically adjust prices over a finite sales horizon to maximize expected revenues. Realized demand is observed over time, but the underlying functional relationship between price and mean demand rate that governs these observations (otherwise known as the demand function or demand curve) is not known. We consider two instances of this problem: (i) a setting where the demand function...
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作者：Cominetti, Roberto; Correa, Jose R.; Stier-Moses, Nicolas E.
作者单位：Universidad de Chile; Universidad de Chile; Columbia University
摘要：In the traffic assignment problem, first proposed by Wardrop in 1952, commuters select the shortest available path to travel from their origins to their destinations. We study a generalization of this problem in which competitors, who may control a nonnegligible fraction of the total flow, ship goods across a network. This type of games, usually referred to as atomic games, readily applies to situations in which the competing freight companies have market power. Other applications include inte...
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作者：Besbes, Omar; Maglaras, Costis
作者单位：University of Pennsylvania; Columbia University
摘要：We consider a revenue-maximizing make-to-order manufacturer that serves a market of price-and delay-sensitive customers and operates in an environment in which the market size varies stochastically over time. A key feature of our analysis is that no model is assumed for the evolution of the market size. We analyze two main settings: (i) the size of the market is observable at any point in time; and (ii) the size of the market is not observable and hence cannot be used for decision making. We f...
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作者：Federgruen, Awi; Yang, Nan
作者单位：Columbia University; Cornell University
摘要：We analyze a planning model for a firm or public organization that needs to cover uncertain demand for a given item by procuring supplies from multiple sources. The necessity to employ multiple suppliers arises from the fact that when an order is placed with any of the suppliers, only a random fraction of the order size is usable. The model considers a single demand season with a given demand distribution, where all supplies need to be ordered simultaneously before the start of the season. The...
