Derek R. Atkins

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Motivated by dynamic scheduling control for queueing networks, Chen and Yao 8] developed a systematic method to generate dynamic scheduling control policies for a uid network, a simple and highly aggregated model that approximates the queueing network. This study addresses the question of how good these uid policies are as heuristic scheduling policies for(More)
0 Abstract High surgical bed occupancy levels often result in heightened staff stress, frequent surgical cancellations and long surgical wait times. This congestion is in part attributable to surgical scheduling practices which often focus on the efficient use of operating rooms but ignore resulting downstream bed utilization. This paper describes a(More)
Yue Zhang, Martin L. Puterman Sauder School of Business, University of British Columbia, 2053 Main Mall, Vancouver, British Columbia, Canada, V6T 1Z2,, Matthew Nelson Centre for Research in Healthcare Engineering, University of Toronto, 5 King’s College Road, Toronto, Ontario, Canada, M5S 3G8,(More)
This paper is based on observations that competing retailers have the option of either agreeing in advance to transship excess inventory to each other or seeing unsatisfied customers switch to the competitor for a substitute. A transshipment game and a substitution game between competing retailers is studied. After establishing the existence and uniqueness(More)
This paper extends the theory of competitive newsvendors to the case where competition occurs simultaneously in both price and inventory. The basic research questions are whether the Nash equilibrium exists in this game, whether it is unique, and how the resulting inventories and prices are a ected by competition. Using a novel method, we show the(More)