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Sapna Isotupa is a professor of Operations and Decision Sciences at the School of Business and Economics, Wilfrid Laurier University. Isotupa received her PhD in Mathematics from Indian Institute of Technology, Madras, India. Her primary research interest is in the area of mathematical modeling of stochastic systems. Her current research topics include stochastic inventory systems, queueing systems and workforce management.
One of the biggest challenges facing organizations today is the need to respond to ever increasing levels of uncertainty in demand. Some companies are addressing this issue by pooling inventories for different types of customers and then rationing inventory among customer classes, thus giving the company agility in satisfying customer demand. One of my research projects deals with analyzing these types of inventory systems and determining efficient policies for rationing. A second project deals with developing risk management strategies for global supply chains to limit the disruption of getting goods to customers due to disruptions along the supply chain.
K.P. Sapna Isotupa: Cost Analysis of an (S-1,S) Inventory System with Two Demand Classes and Rationing, Annals of Operations Research, (in press), DOI 10.1007/s10479-013-1407-3.
M. Haughton and K.P. Sapna Isotupa: Traffic Control in Canada –USA Border Checkpoint Operations: Impacts on Supply Chain Velocity, Infrastructure Spending and National Security, International Journal of Services and Operations Management, 16(3), 337-351, (2013)
K.P. Sapna Isotupa and S.K. Samanta: A Continuous Review (s,Q) Inventory System with Priority Customers and Arbitrarily Distributed Lead Times, Mathematical and Computer Modelling, 57(5-6), 1259-1269, (2013).
M. Haughton and K.P. Sapna Isotupa: Flow Control in Capacity-constrained Queueing Systems with Non-stationary Arrivals, Journal of the Operational Research Society, 64(2), 283-292, (2013).
H. Zolfagharinia and K.P. Sapna Isotupa: Erratum on “Optimal inventory control of empty containers in inland transportation system”, International Journal of Production Economics, 141(1), 435-436, (2013).
M. Haughton and K.P. Sapna Isotupa: Scheduling Commercial Vehicle Queues at a Canada-Border Crossing, Transportation Research, Part E, 48, 190-201, (2012).
K.P. Sapna Isotupa: An (s,Q) Inventory System with Two Classes of Customers, International Journal of Operational Research, 12(1), 12-19, (2011).