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作者：Allon, Gad; Bassamboo, Achal
作者单位：Northwestern University
摘要：Many service providers use delay announcements to inform customers of anticipated delays. However, this information is usually not provided immediately but after a short period of time (spent either waiting or occupied by the system). The focus of this paper is on the impact of this postponement on the ability of the firm to influence customer behavior by communicating nonverifiable congestion information to its customers, as well as on the profits and utilities for the firm and the customers,...
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作者：Broadie, Mark; Cicek, Deniz; Zeevi, Assaf
作者单位：Columbia University
摘要：We consider the Kiefer-Wolfowitz (KW) stochastic approximation algorithm and derive general upper bounds on its mean-squared error. The bounds are established using an elementary induction argument and phrased directly in the terms of tuning sequences of the algorithm. From this we deduce the nonnecessity of one of the main assumptions imposed on the tuning sequences by Kiefer and Wolfowitz [Kiefer, J., J. Wolfowitz. 1952. Stochastic estimation of the maximum of a regression function. Ann. Mat...
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作者：Johari, Ramesh; Tsitsiklis, John N.
作者单位：Stanford University; Massachusetts Institute of Technology (MIT)
摘要：We consider a model where a finite number of producers compete to meet an infinitely divisible but inelastic demand for a product. Each firm is characterized by a production cost that is convex in the output produced, and firms act as profit maximizers. We consider a uniform price market design that uses supply function bidding: firms declare the amount they would supply at any positive price, and a single price is chosen to clear the market. We are interested in evaluating the impact of price...
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作者：Alpern, Steve
作者单位：University of London; London School Economics & Political Science; University of London; London School Economics & Political Science
摘要：We introduce a new type of search game called the find-and-fetch game F(Q, O). The Hider simply picks any point H in the network Q. The Searcher starts at time zero at a given point O of Q, moving at unit speed until he reaches H (finds the Hider). Then he returns at a given speed rho along the shortest path back to O, arriving at time R, the payoff. This models the problem faced in many types of search, including search-and-rescue problems and foraging problems of animals (where food must be ...
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作者：Kwon, H. Dharma; Lippman, Steven A.
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; University of California System; University of California Los Angeles
摘要：We study the impact of learning on the optimal policy and the time-to-decision in an infinite-horizon Bayesian sequential decision model with two irreversible alternatives: exit and expansion. In our model, a firm undertakes a small-scale pilot project to learn, via Bayesian updating, about the project's profitability, which is known to be in one of two possible states. The firm continuously observes the project's cumulative profit, but the true state of the profitability is not immediately re...
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作者：Chen, Xin; Zhou, Sean X.; Chen, Youhua (Frank)
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; Chinese University of Hong Kong
摘要：Motivated by the widespread adoption of dynamic pricing in industry and the empirical evidence of costly price adjustments, in this paper we consider a periodic-review inventory model with price adjustment costs that consist of both fixed and variable components. In each period, demand is stochastic and price-dependent. The firm needs to coordinate the pricing and inventory replenishment decisions in each period to maximize its total discounted profit over a finite planning horizon. We develop...
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作者：Feng, Youyi; Chen, Youhua (Frank)
作者单位：City University of Hong Kong; Chinese University of Hong Kong
摘要：This note considers a joint inventory-pricing control problem in an infinite-horizon periodic-review system. Demand in a period is random and depends on the posted price. Besides the holding and shortage costs, the system incurs inventory-replenishment costs that consist of both variable and fixed components. At the beginning of each period, a joint inventory and pricing decision is made. Under the long-run average profit criterion, we show that an optimal policy exists within the class of so-...
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作者：Wu, Yunan; Cheng, T. C. E.
作者单位：Beijing Foreign Studies University; Hong Kong Polytechnic University
摘要：We give examples to show that the necessary conditions of Theorem 2.1 and Theorem 3.4 in Cheng and Wu [Cheng, T. C. E., Y. N. Wu. 2006. A multiproduct, multicriterion supply-demand network equilibrium model. Oper. Res. 54(3) 544-554] for a multiproduct network equilibrium model may not hold.
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作者：Baldacci, Roberto; Mingozzi, Aristide; Calvo, Roberto Wolfler
作者单位：University of Bologna; University of Bologna; Centre National de la Recherche Scientifique (CNRS); CNRS - Institute for Information Sciences & Technologies (INS2I)
摘要：The capacitated location-routing problem (LRP) consists of opening one or more depots on a given set of a-priori defined depot locations, and designing, for each opened depot, a number of routes in order to supply the demands of a given set of customers. With each depot are associated a fixed cost for opening it and a capacity that limits the quantity that can be delivered to the customers. The objective is to minimize the sum of the fixed costs for opening the depots and the costs of the rout...
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作者：Chou, Mabel C.; Chua, Geoffrey A.; Teo, Chung-Piaw; Zheng, Huan
作者单位：National University of Singapore; Nanyang Technological University; Shanghai Jiao Tong University
摘要：We examine how to design a flexible process structure for a production system to match supply with demand more effectively. We argue that good flexible process structures are essentially highly connected graphs, and we use the concept of graph expansion (a measure of graph connectivity) to achieve various insights into this design problem. Whereas existing literature on process flexibility has focused on the expected performance of process structure, we analyze in this paper the worst-case per...
