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作者：Jouini, Oualid; Aksin, O. Zeynep; Karaesmen, Fikri; Aguir, M. Salah; Dallery, Yves
作者单位：Universite Paris Saclay; Koc University
摘要：The problem of estimating delays experienced by customers with different priorities, and the determination of the appropriate delay announcement to these customers, in a multi-class call center with time varying parameters, abandonments, and retrials is considered. The system is approximately modeled as an M(t)/M/s(t) queue with priorities, thus ignoring some of the real features like abandonments and retrials. Two delay estimators are proposed and tested in a series of simulation experiments....
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作者：An, Jaehyung; Cho, Soo-Haeng; Tang, Christopher S.
作者单位：Samsung; Samsung Electronics; Carnegie Mellon University; University of California System; University of California Los Angeles
摘要：The agricultural sector plays an important role in emerging economies even though most farmers are trapped in the poverty cycle owing to their smallholdings. Aggregating farmers through formal or informal cooperatives (coops) can enable them to: (i) reduce production cost; (ii) increase/stabilize process yield; (iii) increase brand awareness; (iv) eliminate unnecessary intermediaries; and (v) eliminate price uncertainty. To examine whether these effects will benefit the members of such aggrega...
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作者：Dhanorkar, Suvrat; Donohue, Karen; Linderman, Kevin
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University of Minnesota System; University of Minnesota Twin Cities
摘要：Online material and waste exchanges (OMWEs) provide online channels to repurpose by-products, unused materials and waste from industrial and commercial facilities. Unfortunately, OMWE's also have challenges. First, sellers may have access to other disposal options and, as a result, may not fully commit to the exchange. Second, buyers can face high uncertainty about the product exchanged and the transaction being undertaken. Overcoming these challenges is the last hurdle to making OMWEs success...
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作者：Aksin, O. Zeynep; Cakan, Nesrin; Karaesmen, Fikri; Ormeci, E. Lerzan
作者单位：Koc University; Koc University
摘要：Most service systems consist of multidepartmental structures with multiskill agents that can deal with several types of service requests. The design of flexibility in terms of agents' skill sets and assignments of requests is a critical issue for such systems. The objective of this study was to identify preferred flexibility structures when demand is random and capacity is finite. We compare structures recommended by the flexibility literature to structures we observe in practice within call c...
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作者：Gray, John V.; Anand, Gopesh; Roth, Aleda V.
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作者：Feldman, Jacob; Topaloglu, Huseyin
作者单位：Cornell University
摘要：We consider assortment problems under a mixture of multinomial logit models. There is a fixed revenue associated with each product. There are multiple customer types. Customers of different types choose according to different multinomial logit models whose parameters depend on the type of the customer. The goal is to find a set of products to offer so as to maximize the expected revenue obtained over all customer types. This assortment problem under the multinomial logit model with multiple cu...
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作者：Kocaga, Yasar Levent; Armony, Mor; Ward, Amy R.
作者单位：Yeshiva University; New York University; University of Southern California
摘要：In a call center, staffing decisions must be made before the call arrival rate is known with certainty. Once the arrival rate becomes known, the call center may be over-staffed, in which case staff are being paid to be idle, or under-staffed, in which case many callers hang-up in the face of long wait times. Firms that have chosen to keep their call center operations in-house can mitigate this problem by co-sourcing; that is, by sometimes outsourcing calls. Then, the required staffing N depend...
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作者：Paul, Anand; Tan, Yinliang (Ricky); Vakharia, Asoo J.
作者单位：State University System of Florida; University of Florida; Tulane University
摘要：This paper is motivated by observing that an increasing number of firms are offering modular products assembled with multiple option choices for the consumer. Starting with the PC offerings by Dell which allowed (and still allows) users to configure their product by choosing among multiple choices for each option, the current market place seems to have evolved to a make-to-stock scenario where Apple offers its IPAD series with multiple models each with a unique storage size, color, and wireles...
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作者：Chen, Wen; Feng, Qi; Seshadri, Sridhar
作者单位：Providence College; Purdue University System; Purdue University; Indian School of Business (ISB)
摘要：We study an average-cost stochastic inventory control problem in which the firm can replenish inventory and adjust the price at anytime. We establish the optimality to change the price from low to high in each replenishment cycle as inventory is depleted. With costly price adjustment, scale economies of inventory replenishment are reflected in the cycle time instead of lot sizeAn increased fixed ordering cost leads to an extended replenishment cycle but does not necessarily increase the order ...
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作者：Autrey, Romana L.; Bova, Francesco; Soberman, David A.
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; University of Toronto
摘要：Gray markets arise when an intermediary buys a product in a lower-priced, often emerging market and resells it to compete with the product's original manufacturer in a higher priced, more developed market. Evidence suggests that gray markets make the original manufacturer worse off globally by eroding profit margins in developed markets. Thus, it is interesting that many firms do not implement control systems to curb gray market activity. Our analysis suggests that one possible explanation lie...
