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作者：Jiang, Xianghua; Tang, Loon-Ching; Ye, Zhisheng; Zhang, Xun
作者单位：Chinese University of Hong Kong; National University of Singapore; Southern University of Science & Technology
摘要：We study multi-period risk-averse inventory control in a data-driven setting. In this problem, a risk-averse retailer makes periodic decisions on inventory levels based only on historical demand observations without full knowledge of the demand distribution. We adopt the popular nested formulation for risk-averse programs to formulate this multi-period problem and its data-driven counterpart under a coherent risk measure. Our objective is to study the sample complexity bound such that with hig...
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作者：Zhang, Daoheng; Huseyin Turan, Hasan; Sarker, Ruhul; Essam, Daryl; Dai, Shan; Zhang, Lianmin
作者单位：Anhui University of Finance & Economics; University of New South Wales Sydney; Shenzhen Research Institute of Big Data; The Chinese University of Hong Kong, Shenzhen
摘要：We consider a multilocation newsvendor network in which historical data are the only available information about the joint demand distribution. To determine optimal inventory levels, we develop a novel data-driven two-stage distributionally robust optimization model that does not assume the demand support is known. Instead, we infer the support from historical data using two prediction algorithms, which yield quantile-based and Mahalanobis-distance-based support estimates and therefore either ...
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作者：Li, Simin; Bassamboo, Achal; Lariviere, Martin A.
作者单位：Tulane University; Northwestern University
摘要：The use of urgent care centers (UCCs) to reduce emergency department (ED) overuse has yielded mixed results in prior research. This paper investigates how the spatial proximity between UCCs and EDs drives heterogeneous effects of UCCs on ED demand. Using novel, granular encounter-level data from both EDs and newly opened UCCs within a major medical system, we leverage exogenous variation driven by institutional UCC operating hour policies to estimate causal effects. Through difference-in-diffe...
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作者：Vakharia, Asoo J.; Yenipazarli, Arda; Ghosh, Vashkar; Karamemis, Gulver
作者单位：State University System of Florida; University of Florida; University System of Georgia; Georgia Southern University; University of North Carolina; University of North Carolina Greensboro
摘要：Educational services contribute $315.65 billion to the U.S. GDP, with online education representing the fastest-growing segment. This paper examines how operational and market factors influence universities' decisions to introduce online degree programs. We study the strategic introduction of such programs in a vertically differentiated market, where universities differ in online program rankings (quality) and compete for a diverse student population with varying willingness to pay for perceiv...
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作者：Torkaman, Somayeh; Gelper, Sarah; Mutlu, Nevin; Van Woensel, Tom
作者单位：Delft University of Technology; University of Luxembourg; Eindhoven University of Technology
摘要：Omni-channel retailers typically face high return rates, particularly in their online channel. This paper examines how these returns can be converted into exchanges by leveraging omni-channel capabilities. We do so in the context of a fast-fashion retailer running integrated physical store and online channels. Our unit of analysis is a return journey, which starts with an initial online purchase, proceeds with a return, and then potentially continues with subsequent exchanges and returns, repl...
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作者：Yu, Junhao Vincent; Kraft, Tim; Handfield, Robert B.; Hasan, Rejaul; Moore, Marguerite
作者单位：University System of Ohio; Miami University; North Carolina State University; North Carolina State University
摘要：Apparel retailers face increasing pressure to communicate the corporate social responsibility (CSR) performance of their supply chains. While communicating positive CSR performance is common, communicating less-than-perfect performance is challenging and has only recently gained attention. To inform retailers' communication strategies, we examine consumers' responses to different levels of supply chain CSR performance and the mechanisms underlying these responses. We propose a mediation framew...
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作者：Kwasnitschka, Daniel; Franke, Henrik; von Maydell, Richard; Netland, Torbjorn
作者单位：University of South Carolina System; University of South Carolina Columbia; University of Cologne; European Commission Joint Research Centre; EC JRC ISPRA Site; Swiss Federal Institutes of Technology Domain; ETH Zurich
摘要：Considering human motivation, is it more effective to assign work tasks to shop floor workers or let them choose among a set of open tasks? This paper reports the results of a field experiment conducted with a manufacturer that uses wearable devices to distribute shop floor tasks. Drawing on theory on human motivation, we analyze 66,233 machine status reports and 31,429 work tasks completed in two manufacturing plants in Germany and Italy. We rely on a Difference-in-Differences approach in a 1...
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作者：Shen, Yiwen; Chan, Carri W.; Zheng, Fanyin; Argenziano, Michael; Kurlansky, Paul
作者单位：Hong Kong University of Science & Technology; Columbia University; Imperial College London; Columbia University; Cornell University; Weill Cornell Medicine; NewYork-Presbyterian Hospital
摘要：In many service systems, an individual server's workload can have a substantial impact on service time and quality. Such effects are particularly important in healthcare systems which often operate under resource and time constraints. In much of the literature, this effect of workload has been primarily considered at the system and instantaneous level rather than the individual and cumulative level. In this study, we investigate this relationship in the context of cardiac surgery, that is, how...
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作者：Hakkarainen, Tuuli; Colicev, Anatoli; Pedersen, Torben
作者单位：University of Manchester; Alliance Manchester Business School; University of Liverpool; Copenhagen Business School
摘要：Geographic dispersion is routine in new product development, yet it remains unclear whether employee geographic distance (EGD) slows project execution. We develop a coordination cost perspective in which EGD is postulated to increase project delays because it raises attention allocation and information search costs. We test this framework by using a longitudinal employee-project-month panel from a large manufacturing firm that spans 9,729 observations across Europe, North America, and Asia. We...
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作者：Esenduran, Gokce; Heese, Hans Sebastian; Souza, Gilvan C.
作者单位：Purdue University System; Purdue University; North Carolina State University; University of Tennessee System; University of Tennessee Knoxville
摘要：Many firms, such as American Airlines, Patagonia, Google, and Apple, have publicly stated their goal of becoming carbon neutral at some point in the future. These firms are pursuing multiple emissions reduction initiatives within their value chains, such as the use of renewable energy, zero-emissions vehicles, and low-carbon materials and supplies. But despite these efforts, some residual emissions cannot be further reduced, necessitating the purchase of carbon offsets, which increase firms' c...
