-
作者：Schwarz, Leroy B.
-
作者：Ovchinnikov, Anton; Blass, Vered; Raz, Gal
作者单位：University of Virginia; Tel Aviv University
摘要：This article provides a data-driven assessment of economic and environmental aspects of remanufacturing for product+service firms. A critical component of such an assessment is the issue of demand cannibalization. We therefore present an analytical model and a behavioral study which together incorporate demand cannibalization from multiple customer segments across the firm's product line. We then perform a series of numerical simulations with realistic problem parameters obtained from both the...
-
作者：Kesavan, Saravanan; Kushwaha, Tarun
作者单位：University of North Carolina; University of North Carolina Chapel Hill
摘要：In this article, we analyze how retailers change their inventory investment behavior in response to macroeconomic shocks. We examine if service level, as measured by the ratio of stockout to inventory holding costs, can explain the differences in observed behavior across retailers. We use data on macroeconomic indicators and quarterly filings of US public retailers from 1985 to 2009 to estimate a dynamic model of short- and long-term impact of macroeconomic shocks on inventory investment. Our ...
-
作者：Chen, Ying-Ju
作者单位：University of California System; University of California Berkeley
摘要：Recent years have witnessed the pervasive supply disruptions and their impacts on supply chain performance. In this study, we investigate the optimal procurement design with supply disruptions and heterogeneous beliefs between the buyer and the supplier. We examine the impact of information asymmetry on the supplier's belief, the control right of the backup production, and the verifiability of supply disruption. The belief heterogeneity creates speculative gains and losses because the buyer an...
-
作者：Mamani, Hamed; Moinzadeh, Kamran
作者单位：University of Washington; University of Washington Seattle
摘要：We consider a continuous review inventory system where delivery lead times can be managed by expediting in-transit orders shipped from the supplier. First, we propose an ordering/expediting policy and derive expressions for evaluating the operating characteristics of such systems. Second, using extensive numerical experiments, we quantify the benefits of such an expediting policy. Third, we investigate a number of managerial issues. Specifically, we analyze the impact of the number of expediti...
-
作者：Liu, Nan; Ziya, Serhan
作者单位：Columbia University; University of North Carolina; University of North Carolina Chapel Hill
摘要：Many service systems that work with appointments, particularly those in healthcare, suffer from high no-show rates. While there are many reasons why patients become no-shows, empirical studies found that the probability of a patient being a no-show typically increases with the patient's appointment delay, i.e., the time between the call for the appointment and the appointment date. This paper investigates how demand and capacity control decisions should be made while taking this relationship i...
-
作者：Bendoly, Elliot
作者单位：Emory University
摘要：Systems thinking has proven useful in project management planning activities and has been suggested as a critical driver of a range of beneficial organizational behaviors. Yet, empirical evidence on the myriad of ways in which systems thinking can impact internal project dynamics and performance remains limited. This study focuses on one aspect of systems thinking in particular: the ability to recognize and understand the dynamics of systems and their features (e.g., feedback and delay). It ma...
-
作者：Gao, Long; Thomas, Douglas J.; Freimer, Michael B.
作者单位：University of California System; University of California Riverside; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
摘要：A pre-pack is a collection of items used in retail distribution. By grouping multiple units of one or more stock keeping units (SKU), distribution and handling costs can be reduced; however, ordering flexibility at the retail outlet is limited. This paper studies an inventory system at a retail level where both pre-packs and individual items (at additional handling cost) can be ordered. For a single-SKU, single-period problem, we show that the optimal policy is to order into a band with as few...
-
作者：Chen, Rachel R.; Robinson, Lawrence W.
作者单位：University of California System; University of California Davis; Cornell University
摘要：This paper studies appointment scheduling for a combination of routine patients who book well in advance and last-minute patients who call for an appointment later that same day. We determine when these same-day patients should be scheduled throughout the day, and how the prospect of their arrivals affects the appointment times of the routine patients. By formulating the problem as a stochastic linear program, we are able to incorporate random and heterogeneous service times and no-show rates,...
-
作者：Altay, Nezih; Pal, Raktim
作者单位：DePaul University; James Madison University
摘要：The basis for this article is an information-processing view of the UN's cluster approach. We use agent-based modeling and simulations to show that clusters, if properly utilized, encourage better information flow and thus facilitate effective response to disasters. The article intends to turn the attention of the humanitarian community to the importance of sharing information and the role of cluster leads in facilitating humanitarian aid. Our results indicate that if cluster leads act as info...
