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作者：Kuzu, Kaan; Gao, Long; Xu, Susan H.
作者单位：University of Wisconsin System; University of Wisconsin Milwaukee; University of California System; University of California Riverside; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
摘要：Ticket queues are prevalent in service industries. They enhance customer satisfaction by eliminating physical lines but may compromise efficiency. Existing studies offer mixed results on the cause and magnitude of such inefficiency. These results, however, are based on simplistic customer behaviors. Taking a holistic approach, we examine how realistic customer behaviors drive ticket queue performance. Our empirical studies reveal that (i) customers are capable of adapting their patience to the...
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作者：Kuzu, Kaan; Gao, Long; Xu, Susan H.
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作者：Fatehi, Soraya; Wagner, Michael R.
作者单位：University of Washington; University of Washington Seattle
摘要：Problem definition: We analyze a new model of crowdfunding recently introduced by Bolstr, Localstake, and Startwise. A platformacts as a matchmaker between a firm needing funds and a crowd of investors willing to provide capital. After the firm is funded, it pays back the investors using revenue-sharing contracts, with a prespecified investment multiple (investors will receive M >= 1 dollars for every dollar invested) and a revenue-sharing proportion, over an investment horizon of uncertain du...
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作者：Dai, J. G.; Shi, Pengyi
作者单位：Cornell University; The Chinese University of Hong Kong, Shenzhen; Purdue University System; Purdue University
摘要：Problem definition: Inpatient beds are usually grouped into several wards, and each ward is assigned to serve patients from certain primary specialties. However, when a patient waits excessively long before a primary bed becomes available, hospital managers have the option to assign her to a nonprimary bed. although it is undesirable. Deciding when to use such overflow is difficult in real time and under uncertainty. Relevance: To aid the decision making, we model hospital inpatient flow as a ...
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作者：Sun, Jiankun; Van Mieghem, Jan A.
作者单位：Northwestern University
摘要：Problem definition: How to dynamically replenish inventory from two supply sources or shipping modes with general lead times. The fast source is more expensive than the slow source. Academic/practical relevance: Dual sourcing provides supply chain flexibility to mitigate demand and supply risk. Despite its relevance in practice, characterizing the optimal dual sourcing policy is extremely challenging, and the optimal stochastic policy for nonconsecutive lead times has been unknown for over 50 ...
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作者：Sun, Jiankun; Van Mieghem, Jan A.
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作者：Montoya, Ricardo; Gonzalez, Carlos
作者单位：Universidad de Chile
摘要：We propose a hidden Markov model (HMM) approach to identifying on-shelf out-of-stock (OOS) by detecting changes in sales patterns resulting from unobserved states of the shelf. We calibrate our model using point-of-sale (POS) data from a big-box retailer. We validate our approach using visual inspections that monitor the state of the shelf and compare them to the HMM's predictions. We test the proposed approach on 14 products and 10 stores. We specify our model using a hierarchical Bayes appro...
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作者：Murali, Karthik; Lim, Michael K.; Petruzzi, Nicholas C.
作者单位：University of Alabama System; University of Alabama Tuscaloosa; Seoul National University (SNU); Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
摘要：Problem definition: We develop a framework for studying the impact of voluntary ecolabels and mandatory environmental regulation on green product development among competing firms. Academic/practical relevance: We contribute to the academic literature on environmental quality competition by explicitly accounting for the credibility of environmental claims made by firms, and by exploring the implications for society of two mechanisms used to remedy credibility-related consumer discounting of fi...
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作者：Hu, Xing; Wan, Zhixi; Murthy, Nagesh N.
作者单位：University of Oregon
摘要：Many online retail channels face high rates of product returns. This poses a new challenge to the sellers' dynamic pricing problem when some returns in good condition can be resold in the selling season. To study the impact of product returns and guide sellers in adjusting pricing policies, we build a product return model by augmenting the classic monopolist's dynamic pricing framework. We show that the return dynamics can complicate the problem by making it generally not Markovian. We address...
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作者：Guan, Huiqi; Gurnani, Haresh; Geng, Xin; Luo, Yadong
作者单位：University of Miami; Fudan University; Wake Forest University
摘要：Problem definition: In a two-period model of a dyadic supply chain, we study the interaction between the use of strategic inventory withholding by the buyer and the use of a direct selling channel (encroachment) by the supplier in the second period. Academic/practical relevance: While the extant OM literature has individually examined the two strategies, the system-wide combined effect of these strategies has not been studied. Methodology: We fill the gap by building and analyzing two decentra...
