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作者:Sheu, Jiuh-Biing; Choi, Tsan-Ming
作者单位:National Taiwan University; University of Liverpool; University of Liverpool
摘要:This work addresses the issue of intelligent robot-human-coordinated parts-to-picker order fulfillment carried out in a human-friendly manner. One unique feature of the proposed approach involves integrating a real-time data-driven stochastic-dynamic model with a fatigue accumulation function. The optimal solutions help achieve coordination between human pickers and robots, such that robots can agilely adapt to the coordinated pickers' efficiency and fatigue conditions. Specifically, the propo...
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作者:Clarkson, Jake; Voelkel, Michael A.; Sachs, Anna-Lena; Thonemann, Ulrich W.
作者单位:Universite Cote d'Azur; University of Cologne; Lancaster University; Lancaster University
摘要:A retailer places orders periodically for items that are shipped by a wholesaler. Items that are not sold perish randomly and independently of one another, with the perish probability depending on the age class. We consider a first-in-first-out policy for depleting items. We model this problem as a Markov decision process with stochastic demand, unit holding, outdating and ordering costs, plus unit penalty costs for lost sales. We prove convexity for the penultimate period and show convexity m...
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作者:Naumov, Sergey; Keith, David
作者单位:Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Massachusetts Institute of Technology (MIT)
摘要:Ride-hailing platforms such as Uber and Lyft promise to reduce the negative externalities of driving and improve access to transportation. However, recent empirical evidence has been mixed about the impact of ride-hailing on US cities, often resulting in a net increase in traffic congestion and greenhouse gas (GHG) emissions, largely due to increased travel demand and competition with public transit. Pooled rides, in which multiple passengers share a single vehicle, are an effective solution t...
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作者:Murthy, Nagesh N. N.; Nagaraja, Haikady N. N.; Berenji, Hossein Rikhtehgar
作者单位:University of Oregon; University System of Ohio; Ohio State University; Pacific University
摘要:Aggressive overlapping of stochastic activities during phases of vaccine development has been critical to making effective vaccines for COVID-19 available to the public, at pandemic speed. In cyclical projects wherein activities can be overlapped, downstream tasks may need rework on account of having commenced prior to receiving requisite information that is only available upon completion of upstream task(s). We provide a framework to understand the interplay between stochastic overlap duratio...
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作者:Menon, Rahul; Nan, Lin
作者单位:Purdue University System; Purdue University; Purdue University System; Purdue University
摘要:This study examines the optimal reporting time a regulator should choose for firms to report their information when the firms' effort choices influence the outcome of projects. Our analysis shows that, the regulator's optimal choice of reporting time to maximize overall efficiency is contingent on a trade-off between motivating a firm's effort to improve the outcome and saving the liquidation value for the creditor to reduce the firm's financing cost. We also find that to induce the firm's eff...
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作者:Cheng, Stephanie; Lin, Pengkai; Tan (Ricky), Yinliang; Zhang, Yuchen
作者单位:Tulane University; Singapore Management University; University of Houston System; University of Houston
摘要:The past three decades have witnessed a tremendous shift in public health policies toward marijuana legalization in the United States. Adopting the process-based view of innovation, we hypothesize that marijuana's increased use and related consequences after its legalization affect innovators' behavior and social environment during the innovation process, which in turn impacts regional innovation. Utilizing the staggered adoption of medical marijuana laws (MMLs) by 20 states between 1996 and 2...
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作者:Guo, Xiaomeng; Kuang, Yunjuan; Ng, Chi To
作者单位:Hong Kong Polytechnic University; Hong Kong Polytechnic University
摘要:This paper examines firms' post-merger integration (PMI) strategy under price and service-quality competition when facing either deterministic or stochastic demand. Although horizontal mergers are prevalent in practice and have been analyzed extensively in the literature, little attention has been paid to the choice of PMI level. We develop a game-theoretic model, in which multiple firms compete on price and service quality with either deterministic or stochastic demand, and two of them decide...
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作者:Le, Tuan; Stauffer, Jon M. M.; Shetty, Bala; Sriskandarajah, Chelliah
作者单位:University of Pennsylvania; Texas A&M University System; Texas A&M University College Station; Mays Business School; Texas A&M University System; Texas A&M University College Station; Mays Business School
摘要:We study an optimal matching problem in the context of dual-donor organ exchange, where a portion of two living donors' organs are transplanted to a single patient. This dual-donor transplant technique is becoming more widespread for lung and liver transplants. However, multiple medical compatibility criteria pose a serious challenge for matching a patient with two compatible donors. In the United States and many other countries, laws prohibit commercial (for-profit) deals for human organs, so...
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作者:Song, Sining; Dong, Yan; Kull, Thomas; Carter, Craig; Xu, Kefeng
作者单位:University of Tennessee System; University of Tennessee Knoxville; University of South Carolina System; University of South Carolina Columbia; Arizona State University; Arizona State University-Tempe; University of Texas System; University of Texas at San Antonio; University of South Carolina System; University of South Carolina Columbia
摘要:Climate change is a major global risk and a key driver for greenhouse gas emissions reduction. Yet, firms' internal emissions reduction may create a leakage leading to higher emissions in the supply chain. The related literature suggests that the pollution-haven hypothesis explains such emissions leakage. In contrast, we explore an alternative reason for supply chain leakage, which is related to optimization of supply chain activities and supply chain innovation. Based on panel data from Bloom...
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作者:Huchzermeier, Arnd; Moench, Tobias
作者单位:WHU - Otto Beisheim School of Management
摘要:Industry trends such as product customization, radical innovation, and local production accelerate the adoption of mixed-model assembly lines (MMALs) that can cope with a widening gap between model processing times and true build to order capabilitiy. The existing high work content deviations on such assembly lines stress production planning, especially the assembly line sequencing. Most manufacturers set the launching rate for all assembly line products to a fixed launching rate resulting in ...