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作者：Baveja, Manas; Wein, Lawrence M.
作者单位：Stanford University
摘要：Motivated by the cost and disruption involved in changing from a two-finger to a ten-finger biometric system for matching U. S. visitors to a watchlist of criminals and terrorists, we investigate whether any two-finger multistage biometric strategies would fix the inadequate matching performance of poor-quality prints that plagues the U. S. Government's original two-finger, single-stage biometric system. For several multistage strategies, we solve the Stackelberg game in which the U. S. Govern...
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作者：Martinez-de-Albebiz, Victor; Simchi-Levi, David
作者单位：University of Navarra; IESE Business School; Massachusetts Institute of Technology (MIT)
摘要：This paper develops a multiattribute competition model for procurement of short life-cycle products. In such an environment, the buyer installs dedicated production capacity at the suppliers before demand is realized. Final production orders are decided after demand materializes. Of course, the buyer is reluctant to bear all the capacity and inventory risk, and thus signs flexible contracts with several suppliers. We model the suppliers' offers as option contracts, where each supplier charges ...
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作者：Gaur, Daya Ram; Krishnamurti, Ramesh; Kohli, Rajeev
作者单位：University of Lethbridge; Simon Fraser University; Columbia University
摘要：We extend a previous model for scheduling commercial advertisements during breaks in television programming. The proposed extension allows differential weighting of conflicts between pairs of commercials. We formulate the problem as a capacitated generalization of the max k-cut problem in which the vertices of a graph correspond to commercial insertions and the edge weights to the conflicts between pairs of insertions. The objective is to partition the vertices into k capacitated sets to maxim...
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作者：Erickson, Gary M.
作者单位：University of Washington; University of Washington Seattle
摘要：A model is developed that allows the derivation of feedback Nash equilibrium advertising strategies for oligopolistic competitors. The model is an extension of a modified Vidale-Wolfe model that incorporates multiple brands per competitor. The resulting expressions of feedback advertising strategies are combined with those for sales dynamics in an empirical model that is applied to the carbonated soft drink market, which involves three primary competitors and five primary brands. The research ...
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作者：de Vericourt, Francis; Lobo, Miguel Sousa
作者单位：European School of Management & Technology; INSEAD Business School
摘要：Nonprofit firms sometimes engage in for-profit activities for the purpose of generating revenue to subsidize their mission activities. The organization is then confronted with a consumption versus investment trade-off, where investment corresponds to providing capacity for revenue customers, and consumption corresponds to serving mission customers. Exemplary of this approach are the Aravind Eye Hospitals in India, where profitable paying hospitals are used to subsidize care at free hospitals. ...
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作者：Natarajan, Karthik; Pachamanova, Dessislava; Sim, Melvyn
作者单位：National University of Singapore; National University of Singapore; Babson College; National University of Singapore
摘要：We illustrate the correspondence between uncertainty sets in robust optimization and some popular risk measures in finance and show how robust optimization can be used to generalize the concepts of these risk measures. We also show that by using properly defined uncertainty sets in robust optimization models, one can construct coherent risk measures and address the issue of the computational tractability of the resulting formulations. Our results have implications for efficient portfolio optim...
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作者：Eichner, Thomas; Wagener, Andreas
作者单位：University of Bielefeld; Leibniz University Hannover
摘要：We analyze comparative static effects under uncertainty when a decision maker has mean-variance preferences and faces a generic, quasi-linear decision problem with both an endogenous risk and a background risk. In terms of mean-variance preferences, we fully characterize the effects of changes in the location, scale, and concordance parameters of the stochastic environment on optimal risk taking. Presupposing compatibility between the mean-variance and the expected-utility approach, we then tr...
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作者：Zhu, Shushang; Fukushima, Masao
作者单位：Fudan University; Kyoto University
摘要：This paper considers the worst-case Conditional Value-at-Risk (CVaR) in the situation where only partial information on the underlying probability distribution is available. The minimization of the worst-case CVaR under mixture distribution uncertainty, box uncertainty, and ellipsoidal uncertainty are investigated. The application of the worst-case CVaR to robust portfolio optimization is proposed, and the corresponding problems are cast as linear programs and second-order cone programs that c...
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作者：Araman, Victor F.; Caldentey, Rene
作者单位：New York University; American University of Beirut
摘要：A retailer is endowed with a finite inventory of a nonperishable product. Demand for this product is driven by a price-sensitive Poisson process that depends on an unknown parameter that is a proxy for the market size. The retailer has a prior belief on the value of this parameter that he updates as time and available information (prices and sales) evolve. The retailer's objective is to maximize the discounted long-term average profits of his operation using dynamic pricing policies. We consid...
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作者：Mandelbaum, Avishai; Zeltyn, Sergey
作者单位：Technion Israel Institute of Technology; International Business Machines (IBM); IBM ISRAEL
摘要：Motivated by call center practice, we study asymptotically optimal staffing of many-server queues with abandonment. A call center is modelled as an M/M/n+G queue, which is characterized by Poisson arrivals, exponential service times, n servers, and generally distributed patience times of customers. Our asymptotic analysis is performed as the arrival rate, and hence the number of servers n, increases indefinitely. We consider a constraint satisfaction problem, where one chooses the minimal staf...
