Production and Operations Management

最新文章

• Fair and efficient vaccine allocation: A generalized Gini index approach AI翻译
  作者：Gutjahr, Walter J.
  作者单位：University of Vienna
  摘要：The paper proposes an optimization model for the allocation of vaccines to a heterogeneous population composed of several subpopulations with different sizes and epidemiological disease transmission parameters. As the objective, an aggregated function combining a standard utilitarian efficiency criterion with a Gini index-related penalty term is considered. Contrary to previous work, we adopt an outcome equity view: The inequity measure is not based on vaccination fractions or other input fact...
• A boosting policy to optimize user forum performance: Model and validation AI翻译
  作者：Mookerjee, Radha; Jabr, Wael; Singh, Harpreet
  作者单位：University of Texas System; University of Texas Dallas; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
  摘要：Near-constant Internet access through desktop or mobile devices has turned self-service support forums into the first port of call for users seeking to troubleshoot product or service issues. The firms providing these products and services also benefit from this trend since it reduces user support costs by diverting service requests away from costlier support channels, such as help desks. For the continued success of such a forum, however, the managing entity must ensure that users receive tim...
• It's not simply luck: The impact of network strategy, schedule padding, and operational improvements on domestic on-time performance in the US airline industry AI翻译
  作者：Manchiraju, Chandrasekhar; Sohoni, Milind G.; Deshpande, Vinayak
  作者单位：Michigan State University; Michigan State University's Broad College of Business; State University of New York (SUNY) System; University at Buffalo, SUNY; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine
  摘要：Airlines showcase their on-time performance (OTP), a globally accepted operational performance metric, to demonstrate punctuality, service reliability, and attract air travelers. Airlines can adopt passive strategies, such as schedule padding, and active strategies, such as making operational changes/improvements, to improve their OTP. While there is a high degree of variation in airlines' OTP from year to year, it is unclear if and the extent to which airlines' active or passive actions impac...
• Coordinated charging station search in stochastic environments: A multiagent approach AI翻译
  作者：Guillet, Marianne; Schiffer, Maximilian
  作者单位：Technical University of Munich; Technical University of Munich; Technical University of Munich
  摘要：Range and charge anxiety remain essential barriers to a faster electric vehicle (EV) market diffusion. To this end, quickly and reliably finding suitable charging stations may foster an EV uptake by mitigating drivers' anxieties. Here, existing commercial services help drivers to find available stations based on real-time availability data but struggle with data inaccuracy, for example, due to conventional vehicles blocking the access to public charging stations. In this context, recent works ...
• The economics of process transparency AI翻译
  作者：Guda, Harish; Dawande, Milind; Janakiraman, Ganesh
  作者单位：Arizona State University; Arizona State University-Tempe; University of Texas System; University of Texas Dallas; Arizona State University; Arizona State University-Tempe
  摘要：We propose and analyze a novel framework to understand the role of noninstrumental information sharing in service operations management, that is, information shared by the firm not to affect consumers' actions, but to better manage their experience in the firm's process. The operations of the firm are organized as a process, consisting of a sequence of tasks, each of random duration. The firm shares real-time information with the consumer about the progress of their flow unit in the firm's pro...
• To centralize or decentralize: Mergers under price and quality competition AI翻译
  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...
• Serving two masters? Optimizing mobile ad contracts with heterogeneous advertisers AI翻译
  作者：Ghoshal, Abhijeet; Mookerjee, Radha; Sun, Zhen
  作者单位：University of Illinois System; University of Illinois Urbana-Champaign; University of Texas System; University of Texas Dallas
  摘要：Our research question is motivated by a real problem faced by an existing demand aggregator. The aggregator represents multiple advertisers, each of whom signs one of two types of contracts with the aggregator for bidding on an RTB (real-time bidding) platform. A quality contract occurs on a cost-per-impression (CPM, i.e., cost per thousand impressions) basis. The advertiser is promised a minimum number of impressions and pays a CPM that is a function of the targeting quality as measured by th...
• Constrained optimization of objective functions determined from random forests AI翻译
  作者：Biggs, Max; Hariss, Rim; Perakis, Georgia
  作者单位：University of Virginia; McGill University; Massachusetts Institute of Technology (MIT)
  摘要：In this paper, we examine a data-driven optimization approach to making optimal decisions as evaluated by a trained random forest, where these decisions can be constrained by an arbitrary polyhedral set. We model this optimization problem as a mixed-integer linear program. We show this model can be solved to optimality efficiently using pareto-optimal Benders cuts for ensembles containing a modest number of trees. We consider a random forest approximation that consists of sampling a subset of ...
• Collaboration-competition dilemma in flattening the COVID-19 curve AI翻译
  作者：Van Oorschot, Kim E.; Van Wassenhove, Luk N.; Jahre, Marianne
  作者单位：BI Norwegian Business School; INSEAD Business School
  摘要：Testing for COVID-19 is a key intervention that supports tracking and isolation to prevent further infections. However, diagnostic tests are a scarce and finite resource, so abundance in one country can quickly lead to shortages in others, creating a competitive landscape. Countries experience peaks in infections at different times, meaning that the need for diagnostic tests also peaks at different moments. This phase lag implies opportunities for a more collaborative approach, although countr...
• Operations (management) warp speed: Rapid deployment of hospital-focused predictive/prescriptive analytics for the COVID-19 pandemic AI翻译
  作者：Shi, Pengyi; Helm, Jonathan E.; Chen, Christopher; Lim, Jeff; Parker, Rodney P.; Tinsley, Troy; Cecil, Jacob
  作者单位：Purdue University System; Purdue University; Indiana University System; Indiana University Bloomington; IU Kelley School of Business; Indiana University Health; IU Health University Hospital
  摘要：At the onset of the COVID-19 pandemic, hospitals were in dire need of data-driven analytics to provide support for critical, expensive, and complex decisions. Yet, the majority of analytics being developed were targeted at state- and national-level policy decisions, with little availability of actionable information to support tactical and operational decision-making and execution at the hospital level. To fill this gap, we developed a multi-method framework leveraging a parsimonious design ph...