查看更多>>摘要：It has been an honor and a privilege to serve the OM field in the capacity of co-EICs over the last 6 years. It is a never-ending job, one from which it is challenging to find a break (as when Suzanne suffered through a small computer-monitor screen and poor internet connectivity in the Finnish forest, and when Tyson took several one-hundred-mile hikes with a laptop computer in his backpack). We look forward to remembering what an actual, disconnected vacation feels like! We have relied on the fantastic support of the entire JOM community, especially the excellent authors, DEs, GEs, AEs, and reviewers who make the Journal what it is. The one person we absolutely could not have done this without is Jamie Sanchagrin, the Managing Editor. We know the Journal is in great hands with the incoming co-EICs, under whose leadership JOM will continue to evolve for the better of our OM community.
Jose Benedicto DuhaylongsodFelix PapierAyse Onculer
1219-1234页
查看更多>>摘要：This paper investigates a supply chain governed by a flat penalty service-level contract in which missing the target fill rate can lead to costly operational disruption. We focus on near-miss bias: (1) the preference for near-miss events, that is, risky production quantities that reach the target but narrowly avoid disruption; and (2) riskier decision-making due to such preferences. We propose a reference-dependent behavioral model that explains the near-miss bias. The findings of a laboratory experiment show that production quantities are evaluated based on realized profits and are below the optimal model prediction. Contracts associated with lower perceived severity, that is, the ratio of flat penalty to wholesale price, result in lower production quantities than those with higher perceived severity, even though the standard model does not predict any effect. A structural estimation analysis indicates that the behavioral model performs better than the standard model in terms of predictive accuracy and goodness of fit. Our analysis provides insights for managers who design supply chain contracts in settings with considerable risk of disruption due to a shortage of critical parts.
查看更多>>摘要：The cost of medical supplies represents a significant portion of hospital spending. Hospitals manage different types of medical supplies, such as general medical supplies and physician preference items. General medical supplies tend to be numerous and relatively low cost, while physician preference items tend to be less numerous and more expensive. Strong physician preference for certain medical supplies can limit the options available to reduce inventory costs. The use of consignment inventory is one way in which hospitals seek to reduce inventory costs for both general supplies as well as physician preference items. However, the use of consignment reduces the level of oversight that hospitals have on consigned inventories, thereby potentially increasing the likelihood of shrinkage. The impact of consignment on shrinkage cost has received limited attention. We investigate this issue by drawing upon the precepts of agency theory and by analyzing hospital data that span multiple years. Our results suggest that the use of consignment increases shrinkage and spend. We develop empirically informed analytical models to better understand the impact of an unforeseen increase in shrinkage on the cost associated with general and physician preference items. The analytical investigation suggests that the impact on general and physician preference items differ depending on the type of consignment contract negotiated between a hospital and a vendor. We discuss the theoretical and managerial implications of our findings.
Saman LagziBernardo F. QuirogaGonzalo RomeroNicholas Howard...
1257-1281页
查看更多>>摘要：We study the potential negative impact of imbalanced compensation schemes on firm performance. We analyze data from a radiology workflow platform that connects off-site radiologists with hospitals. These radiologists select tasks from a common pool, while service level is defined by priority-specific turnaround time targets. However, imbalances between pay and workload of different tasks could result in higher priority tasks with low pay-to-workload ratio receiving poorer service. We investigate this hypothesis, showing turnaround time is decreasing in pay-to-workload for lower priority tasks, whereas it is increasing in workload for high-priority tasks. Crucially, we find evidence of an externality effect: Having many economically attractive tasks with low priority can lead to longer turnaround times for higher priority tasks, increasing their likelihood of delay, thus partially defeating the purpose of the priority classes.
查看更多>>摘要：In a service exchange setting, the supply management literature generally assumes, with notable exceptions, the availability of complete information regarding supplier reliability. Highlighting the information asymmetry in supplier evaluation and using signaling theory, we argue that for a focal buyer, a supplier's downstream ego-network instability, that is, other buyers' turnover in a supplier's network from one period to the next, acts as a signal of supplier unreliability, thereby reducing the price that the buyer pays to the supplier in a service exchange. Furthermore, we suggest that focal buyer-supplier relationship strength and structural equivalence weaken the negative effect of instability because the buyer has a more direct and positive experience with the supplier. Using a dataset of 3263 unique dyads formed by 260 buyers (shi-poperators) and 493 suppliers (shipowners) during the 2000-2018 period in the container shipping charter market, we find support for our hypotheses, except for the contingent effect of structural equivalence. Our study contributes to signaling literature and network research by developing a supplier's downstream ego-network instability as a salient heuristic for a focal buyer's pricing decisions. These findings equip buyer managers who may not accurately foresee supplier service quality in the charter market with a new supplier evaluation tool: a supplier's downstream ego-network instability.
Aydin AlptekinogluAshley Stadler BlankMargaret G. MeloyV. Daniel R. Guide Jr....
1320-1341页
查看更多>>摘要：We experimentally investigate whether mass customization enhances sustain-ability and firm outcomes in a fast fashion context. Fast fashion delivers fashion trends to consumers quickly and cheaply but has detrimental effects on the environment (e.g., waste accumulation, water pollution). To mitigate these harmful effects, we examine how different points of customer involvement in mass customization affect the anticipated number of months to product disposal and willingness-to-pay for mass-customized products. We employ a series of experiments and find that consumer perceptions of the degree of customization increase as the point of customer involvement shifts upstream from Use to Assembly to Fabrication to Design and that the anticipated number of months to disposal and willingness-to-pay increase as the point of customer involvement shifts upstream to Design. We also find that the implementation of customer involvement in mass customization matters. Overall, these results provide evidence that mass customization via Design may not only help slow fast fashion down, which has major sustainability implications, but it may also present a win-win opportunity for both the environment and firms (in terms of the bottom line-provided, of course, that it does not have any major cost disadvantages).
查看更多>>摘要：During software product development, the combination of digital resources (such as application programming interfaces and software development kits) establishes loose and tight edges between nodes, which form a software product network (SPN). These edges serve as observable conduits that may help practitioners and researchers better understand how vulnerabilities diffuse through SPNs. We apply network theory to analyze data from over 12 years of records extracted from the National Vulnerability Database. We contribute novel measures established using machine learning to gauge the properties influencing vulnerability diffusion within an SPN. We observed an SPN having a discernable shape that changed over time via network updates. We propose hypotheses and find empirical evidence that vulnerability diffusion is influenced by edge dynamics, developer responses, and their interaction. Implications for practice are that increased developer responses reduce software vulnerability diffusion attributed to edge dynamics.
Suzanne de TrevilleTyson R. BrowningMatthias HolwegRachna Shah...
1371-1376页
查看更多>>摘要：As scholars in the field of operations management (OM), we would like to suggest that our field fell short in terms of due diligence when transitioning from statistical process control (SPC) to Six Sigma-accepting without scrutiny, building theory around, and teaching heuristics and algorithms without recognizing its underlying statistical inaccuracies. It is our view that these incorrect heuristics and algorithms have introduced bias and inefficiencies in process improvement throughout the OM field, contributing to a disconnect between OM and knowledge development in data science more generally. We call for a return to first principles and the establishment of formal conceptual definitions for the theory and methods underlying Six Sigma. We urge the OM academic community to embrace the lessons from SPC and Six Sigma so that we prioritize our due-diligence role, beginning with a requirement that all algorithms and tools be vetted before entering our curricula and case-study repertoires, especially as we move forward into an age of big data and potentially further opaque algorithms and tools. We propose that our top journals be open to research that scrutinizes methods developed in practice, so that OM will continue to be the focal field for quality assurance-even when the "product" of a process is data.
NETL
NSTL
Wiley