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作者：Aravindakshan, Ashwin; Naik, Prasad A.
作者单位：University of California System; University of California Davis
摘要：Extant models assume that awareness decline commences instantly. In contrast, we incorporate the possibility that awareness declines with a delay due to the memory for advertisements. To this end, we use delay differential equations to understand the evolution of awareness in the presence of ad memorability. This extended model generates optimal advertising policies that include the even spending policy, blitz policy, and various cyclic pulsing policies, depending on whether ad memorability ex...
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作者：Lamorgese, Leonardo; Mannino, Carlo
作者单位：SINTEF
摘要：Trains' movements on a railway network are regulated by official timetables. Deviations and delays occur quite often in practice, demanding fast rescheduling and rerouting decisions in order to avoid conflicts and minimize overall delay. This is the real-time train dispatching problem. In contrast with the classic holistic approach, we show how to decompose the problem into smaller subproblems associated with the line and the stations. This decomposition is the basis for a master-slave solutio...
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作者：Cooper, William L.; Homem-de-Mello, Tito; Kleywegt, Anton J.
作者单位：University of Minnesota System; University of Minnesota Twin Cities; Universidad Adolfo Ibanez; University System of Georgia; Georgia Institute of Technology
摘要：In revenue management research and practice, demand models are used that describe how demand for a seller's products depends on the decisions, such as prices, of that seller. Even in settings where the demand for a seller's products also depends on decisions of other sellers, the models often do not explicitly account for such decisions. It has been conjectured in the revenue management literature that such monopoly models may incorporate the effects of competition, because the parameter estim...
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作者：Liu, Guangwu
作者单位：City University of Hong Kong
摘要：The 2007-2009 financial turmoil highlighted the need for more active management of credit portfolios. After measuring portfolio credit risk, an important step toward active risk management is to measure risk contributions of individual obligors to the overall risk of the portfolio. In practice, value-at-risk is often used as a risk measure for credit portfolios, and it can be decomposed into a sum of the risk contributions of individual obligors. Estimation of these risk contributions is compu...
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作者：Alpern, Steve A; Lidbetter, Thomas
作者单位：University of Warwick; University of London; London School Economics & Political Science
摘要：A Searcher seeks to find a stationary Hider located at some point H (not necessarily a node) on a given network Q. The Searcher can move along the network from a given starting point at unit speed, but to actually find the Hider she must pass it while moving at a fixed slower speed (which may depend on the arc). In this bimodal search game, the payoff is the first time the Searcher passes the Hider while moving at her slow speed. This game models the search for a small or well hidden object (e...
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作者：Barrera, Jorge; Garcia, Alfredo
作者单位：University of Virginia; State University System of Florida; University of Florida
摘要：We consider the problem of efficiently allocating the capacity of a number of service facilities (prone to congestion) to a set of users with private information regarding their willingness to pay for different combinations of throughput versus latency. Auction mechanisms can be used to schedule the service capacity of available facilities. However, the interdependency of users' valuations implies that simple uniform price adjustment processes (e.g., tatonnement) either fail to effectively cle...
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作者：Simchi-Levi, David; Wei, Yehua
作者单位：Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); Duke University
摘要：Theoretical studies of process flexibility designs have mostly focused on expected sales. In this paper, we take a different approach by studying process flexibility designs from the worst-case point of view. To study the worst-case performances, we introduce the plant cover indices (PCIs), defined by bottlenecks in flexibility designs containing a fixed number of products. We prove that given a flexibility design, a general class of worst-case performance measures can be expressed as function...
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作者：Chen, Lucy Gongtao; Robinson, Lawrence W.; Roundy, Robin O.; Zhang, Rachel Q.
作者单位：National University of Singapore; Cornell University; Brigham Young University; Hong Kong University of Science & Technology
摘要：In today's business environment, unpredictable economic and noneconomic forces can affect firms' operational costs and discount factors, as well as demand. In this paper, we incorporate these uncertainties into a single-product, periodic-review, finite-horizon stochastic inventory system by modeling operational costs, discount factors, and demands as stochastic processes that evolve over time. We study three stockout protocols and establish conditions under which (s, S) inventory policies are ...
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作者：Baillon, Aurelien; Bleichrodt, Han; Cillo, Alessandra
作者单位：Erasmus University Rotterdam; Erasmus University Rotterdam - Excl Erasmus MC; Bocconi University; Bocconi University
摘要：This paper reports a new test of intransitive choice using individual measurements of regret-and similarity-based intransitive models of choice under uncertainty. Our test is tailor-made and uses subject-specific stimuli. Despite these features, we observed only a few intransitivities. A possible explanation for the poor predictive performance of intransitive choice models is that they only allow for interactions between acts. They exclude within-act interactions by retaining the assumption th...
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作者：Gallego, Guillermo; Ratliff, Richard; Shebalov, Sergey
作者单位：Columbia University
摘要：This paper addresses two concerns with the state of the art in network revenue management with dependent demands. The first concern is that the basic attraction model (BAM), of which the multinomial logit (MNL) model is a special case, tends to overestimate demand recapture in practice. The second concern is that the choice-based deterministic linear program, currently in use to derive heuristics for the stochastic network revenue management problem, has an exponential number of variables. We ...
