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作者：Tayur, Sridhar
作者单位：Carnegie Mellon University
摘要：I have enjoyed the opportunities to identify new problems, implement my ideas and algorithms in practice, work closely with start-ups and mature organizations, and build a software company that created the market for enterprise inventory optimization, while also developing novel solution methods that have adapted and enhanced esoteric mathematics. This invited essay is a playful reflection of creative joy in operations management (OM)-obtained by intertwining theoretical developments with indu...
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作者：Gur, Yonatan; Lu, Lijian; Weintraub, Gabriel Y.
作者单位：Stanford University; Columbia University
摘要：Framework agreements (FAs) are procurement mechanisms commonly used by buying agencies around the world to satisfy demand that arises over a certain time horizon. This paper is one of the first in the literature that provides a formal understanding of FAs, with a particular focus on the cost uncertainty bidders face over the FA time horizon. We generalize standard auction models to include this salient feature of FAs and analyze this model theoretically and numerically. First, we show that FAs...
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作者：Lejeune, Miguel A.; Kettunen, Janne
作者单位：George Washington University
摘要：The timing of forest stands harvesting is an important operational decision in forestry. Major goals of private nonindustrial forest owners are to achieve a steady flow of profits while reaching an overall satisfactory and reliable profit level. These goals are pursued under uncertainties in the growth of trees in different regions and in the prices of wood products. We propose an optimization framework that uses financial risk concepts to capture the above goals and uncertainties, and apply i...
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作者：Zacharias, Christos; Pinedo, Michael
作者单位：University of Miami; New York University
摘要：We analyze a discrete multiserver model for scheduling customer arrivals under no-shows. The challenge is to assign customers to time slots so that the service system utilizes its resources efficiently and customers experience short waiting times. We provide theoretical and heuristic guidelines for an effective practice of appointment overbooking to offset no-shows. Recursive and explicit expressions for the performance measures of interest are derived based on the random evolution of the syst...
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作者：Birge, John R.; Parker, Rodney P.; Wu, Michelle Xiao; Yang, S. Alex
作者单位：University of Chicago; Indiana University System; Indiana University Bloomington; IU Kelley School of Business; Washington State University; University of London; London Business School
摘要：The presence of strategic customers may force an already financially distressed firm into a death spiral: sensing the firm's financial difficulty, customers may wait strategically for deep discounts in liquidation sales. In turn, such waiting lowers the firm's profitability and increases the firm's bankruptcy risk. Using a two-period model to capture these dynamics, this paper identifies customers' strategic waiting behavior as a source of a firm's cost of financial distress. We also find that...
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作者：Ho, Teck-Hua; Lim, Noah; Reza, Sadat; Xia, Xiaoyu
作者单位：National University of Singapore; University of Wisconsin System; University of Wisconsin Madison; Nanyang Technological University; Chinese University of Hong Kong
摘要：Operations management (OM) researchers have traditionally focused on developing normative mathematical models that prescribe what managers and firms should do. Recently, there has been increased interest in understanding what managers and firms actually do and the factors that drive these decisions. To advance this understanding, empirical investigation using causal inference models is critical. However, in many contexts, the ability to obtain causal inferences is fraught with the challenges o...
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作者：Ball, George; Siemsen, Enno; Shah, Rachna
作者单位：Indiana University System; Indiana University Bloomington; IU Kelley School of Business; University of Wisconsin System; University of Wisconsin Madison; University of Minnesota System; University of Minnesota Twin Cities
摘要：Plant inspections enable firms to manage their quality risk in global supply chains. However, surprisingly little research examines the relationship between such inspections and future product quality. In this paper, we study how well plant inspection outcomes predict the hazard of a future recall and analyze how investigator experience affects this predictive relationship. Using secondary data spanning a seven-year period in the medical device industry and a recurrent-event Cox proportional h...
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作者：Boyabatli, Onur; Nguyen, Jason; Wang, Tong
作者单位：Singapore Management University; University of Minnesota System; University of Minnesota Twin Cities; National University of Singapore
摘要：This paper examines the capacity investment decisions of a processor that uses a commodity input to produce both a commodity output and a by-product in the context of agricultural industries. We employ a multiperiod model to study the optimal one-time processing and (output) storage capacity investment decisions-in addition to the periodic processing and inventory decisions-when both input and output spot prices as well as production yield are uncertain. We characterize the optimal decisions a...
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作者：Calmon, Andre P.; Graves, Stephen C.
作者单位：INSEAD Business School; Massachusetts Institute of Technology (MIT)
摘要：The goal of this paper is to describe, model, and optimize inventory in a reverse logistics system that supports the warranty returns and replacements for a consumer electronic device. The context and motivation for this work stem from a collaboration with an industrial partner, a Fortune 100 company that sells consumer electronics. The reverse logistics system is a closed-loop supply chain: failed devices are returned for repair and refurbishing; this inventory is then used to serve warranty ...
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作者：Chen, Weiwei; Melamed, Benjamin; Sokolinskiy, Oleg; Sopranzetti, Ben
作者单位：Rutgers University System; Rutgers University New Brunswick; Rutgers University System; Rutgers University New Brunswick
摘要：This paper models a cash conversion system in a subsidiary of a parent company where there is an active internal capital market, but otherwise the subsidiary has no access to additional external funds. The cash conversion system consists of a treasury, a single-product make-to-stock inventory, and a receivables pool. It implements a perpetual flow cycle, where funds convert to product and back to funds. The system is stationary, and revenues and costs flow directly to the parent company. The p...
