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作者：Zhou, Sean X.; Yu, Yikun
作者单位：Chinese University of Hong Kong
摘要：Acquisition of used products ( cores) is central to the success of remanufacturing programs for companies. At the same time, dynamic pricing strategies have been adopted in various industries to better balance supply and customer demand. In this paper, we study the integration of these two aspects of operations together with inventory management for a production/remanufacturing firm. We develop a periodic-review single-product inventory system with price-dependent customer demand. The product ...
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作者：Simchi-Levi, David
作者单位：Massachusetts Institute of Technology (MIT)
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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：Kuo, Chia-Wei; Ahn, Hyun-Soo; Aydin, Goeker
作者单位：National Taiwan University; University of Michigan System; University of Michigan; Indiana University System; IU Kelley School of Business; Indiana University Bloomington
摘要：Although take-it-or-leave-it pricing is the main mode of operation for many retailers, a number of retailers discreetly allow price negotiation when some haggle-prone customers ask for a bargain. At these retailers, the posted price, which itself is subject to dynamic adjustments in response to the pace of sales during the selling season, serves two important roles: (i) it is the take-it-or-leave-it price to many customers who do not bargain, and (ii) it is the price from which haggle-prone cu...
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作者：Abbas, Ali E.; Bell, David E.
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; Harvard University
摘要：Assessment of multiattribute utility functions is significantly simplified if it is possible to decompose the function into more manageable pieces. Utility independence is a powerful property that serves well for this purpose, but if it is not appropriate in a given situation, what options does the analyst have? We review some possibilities and propose a new independence assumption based on the one-switch property. We argue that it is a natural generalization of utility independence and show h...
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作者：Matoglu, Melda Ormeci; Vande Vate, John
作者单位：Ozyegin University; University System of Georgia; Georgia Institute of Technology
摘要：We model the problem of managing capacity in a build-to-order environment as a Brownian drift control problem and seek a policy that minimizes the long-term average cost. We assume the controller can, at some cost, shift the processing rate among a finite set of alternatives, for example by adding or removing staff, increasing or reducing the number of shifts, or opening or closing production lines. The controller incurs a cost for capacity per unit time and a delay cost that reflects the oppo...
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作者：Liu, Guangwu; Hong, L. Jeff
作者单位：City University of Hong Kong; Hong Kong University of Science & Technology
摘要：The Greeks are the derivatives (also known as sensitivities) of the option prices with respect to market parameters. They play an important role in financial risk management. Among many Monte Carlo methods of estimating the Greeks, the classical pathwise method requires only the pathwise information that is directly observable from simulation and is generally easier to implement than many other methods. However, the classical pathwise method is generally not applicable to the Greeks of options...
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作者：Devalkar, Sripad K.; Anupindi, Ravi; Sinha, Amitabh
作者单位：Indian School of Business (ISB); University of Michigan System; University of Michigan
摘要：We consider the integrated optimization problem of procurement, processing, and trade of commodities in a multiperiod setting. Motivated by the operations of a prominent commodity processing firm, we model a firm that procures an input commodity and has processing capacity to convert the input into a processed commodity. The processed commodity is sold using forward contracts, while the input itself can be traded at the end of the horizon. We solve this problem optimally and derive closed-form...
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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：Brooks, J. Paul
作者单位：Virginia Commonwealth University
摘要：In the interest of deriving classifiers that are robust to outlier observations, we present integer programming formulations of Vapnik's support vector machine (SVM) with the ramp loss and hard margin loss. The ramp loss allows a maximum error of 2 for each training observation, while the hard margin loss calculates error by counting the number of training observations that are in the margin or misclassified outside of the margin. SVM with these loss functions is shown to be a consistent estim...
