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作者：Ouyang, Huiyin; Argon, Nilay Tanik; Ziya, Serhan
作者单位：University of Hong Kong; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine
摘要：For a queueing system with multiple customer types differing in service-time distributions and waiting costs, it is well known that the c mu-rule is optimal if costs for waiting are incurred linearly with time. In this paper, we seek to identify policies that minimize the long-run average cost under nonlinear waiting cost functions within the set of fixed priority policies that only use the type identities of customers independently of the system state. For a single-server queueing system with...
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作者：Geng, Xin; Guo, Xiaomeng; Xiao, Guang
作者单位：University of Miami; Hong Kong Polytechnic University
摘要：We study the impacts of social interactions on competing firms' quality differentiation, pricing decisions, and profit performance. Two forms of social interactions are identified and analyzed: (1) market-expansion effect (MEE)-the total market expands as a result of both firms' sales-and (2) value-enhancement effect (VEE)-a consumer gains additional utility of purchasing from one firm based on this firm's previous and/or current sales volume. We consider a two-stage duopoly competition framew...
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作者：Hu, Ming; Xu, Xiaolin; Xue, Weili; Yang, Yi
作者单位：University of Toronto; Nanjing University; Southeast University - China; Zhejiang University
摘要：Both traditional retailers and e-tailers have been implementing omnichannel strategies such as buy online, pick up at store (BOPS). We build a stylized model to investigate the impact of the BOPS initiative on store operations from an inventory perspective. We consider two segments of customers, namely store-only customers who only make purchases offline and omni-customers who strategically choose between offline and online channels. We show that BOPS may either benefit or hurt the retailer de...
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作者：Benjaafar, Saif; Wu, Shining; Liu, Hanlin; Gunnarsson, Einar Bjarki
作者单位：University of Minnesota System; University of Minnesota Twin Cities; Hong Kong Polytechnic University; Southern University of Science & Technology
摘要：We consider the problem of optimal fleet sizing in a vehicle sharing system. Vehicles are available for short-term rental and are accessible from multiple locations. A vehicle rented at one location can be returned to any other location. The size of the fleet must account not only for the nominal load and for the randomness in demand and rental duration but also for the randomness in the number of vehicles that are available at each location because of vehicle roaming (vehicles not returning t...
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作者：Boute, Robert N.; Disney, Stephen M.; Gijsbrechts, Joren; Van Miegheme, Jan A.
作者单位：KU Leuven; Vlerick Business School; University of Exeter; Universidade Catolica Portuguesa; Northwestern University
摘要：We investigate near-shoring a small part of the global production to local SpeedFactories that serve only the variable demand. The short lead time of the responsive SpeedFactory reduces the risk of making large volumes in advance, yet it does not involve a complete reshoring of demand. Using a break-even analysis, we investigate the lead time, demand, and cost characteristics that make dual sourcing with a SpeedFactory desirable compared with complete off-shoring. Our analysis uses a linear ge...
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作者：Gu, Zhuojun; Bapna, Ravi; Chan, Jason; Gupta, Alok
作者单位：University of Texas System; University of Texas Arlington; University of Minnesota System; University of Minnesota Twin Cities
摘要：The most commonly cited issues with mobile apps are low user engagement and retention levels. In this paper, we use a randomized control trial to test the efficacy of crowdsourcing on enhancing user engagement and retention in the context of mobile gaming apps. We examine two specific crowdsourcing features: the ability to submit content and the ability to access crowdsourced content. We find that the content submission significantly increases engagement and retention by reducing users' hazard...
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作者：Liu, Yunting
作者单位：Peking University
摘要：To capture the dynamics of idiosyncratic volatility of stock returns over different horizons and investigate the relationship between idiosyncratic volatility and expected stock returns, this paper develops and estimates a parsimonious model of idiosyncratic volatility consisting of a short-run and a long-run component. The conditional short-run and long-run components are found to be positively and negatively related to expected stock returns, respectively. The positive relation between the s...
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作者：Luo, Hong; Zhang, Laurina
作者单位：Harvard University; Boston University
摘要：Socialmovements have the potential to effect change in strategic decisionmaking. In this paper, we examine whether the #MeToo movement, spurred by the Harvey Weinstein scandal, leads to changes in the likelihood of Hollywood producers working with female writers on new movie projects. Because #MeToo affected the entire industry, we use variation in whether producers had past collaborations with Weinstein to investigate whether and how #MeToo may spur change. We find that producers previously a...
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作者：Ning, Z. Eddie; Villas-Boas, J. Miguel
作者单位：University of California System; University of California Berkeley
摘要：We consider dynamic repositioning when competing firms try to follow the evolution of consumer preferences while taking into account the competitive interaction, both in terms of static market competition and the dynamic effects of different firm positionings. We fully characterize the dynamic market equilibrium, which includes the timing of the firms' repositionings depending on consumer preferences. As consumer preferences evolve away from where both firms are located, one firm first moves t...
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作者：Wu, Szu-Yin (Jennifer); Chung, Kee H.
作者单位：State University of New York (SUNY) System; University at Buffalo, SUNY; Sungkyunkwan University (SKKU)
摘要：This paper shows that hedge fund activism is associated with a decrease in mergers and acquisitions (M&A) and offer premiums and an increase in stock and operating performance. Activist hedge funds improve target firms' M&A performance by reducing poor M&A, diversifying M&A, and the M&A of firms with multiple business segments. Activist hedge funds improve target firms' M&A decisions by influencing their governance practices. We show that our results are unlikely driven by selection bias. Over...
