Costis Maglaras Philip H. Geier Jr. - Associate Professor of Business 409 Uris Hall, 3022 Broadway Columbia Business School New York, NY 10027 T: 212-854-4240 F: 212-316-9180 Email: c.maglaras@gsb.columbia.edu

GRADUATE SCHOOL OF BUSINESS COLUMBIA UNIVERSITY

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RESEARCH INTERESTS

My research interests are in stochastic modeling and operations management with particular focus on:

(a) Revenue management and its application in the manufacturing and service sector.

(b) Analysis and design of service systems, primarily motivated from information and communication services. 

(c) Stochastic network theory.

PUBLICATIONS

(Following the link to a paper you get a short abstract and links to the postscript and/or pdf file.)

Submitted

1. Revenue management for a multi-class single-server queue, Submitted November 2003. (Abstract + PDF)
2. Pricing and Performance Analysis for a System with Differentiated Services and Customer Choice, (with Assaf Zeevi), Proceedings of the 41st Annual Allerton Conference on Communication, Control, and Computing, Eds. R. Srikant and G. Voulgaris, 2003. (Abstract + PDF)
3. Dynamic pricing strategies for multi-product revenue management problems, (with Joern Meissner), Submitted July 2003; revised June 2004. (Abstract + PDF)

Appeared/Accepted

4. Pricing and design of differentiated services: Approximate analysis and structural insights, (with Assaf Zeevi), To appear in Operations Research, 2005.  (Abstract + PDF)
5. Admission and sequencing control under delay constraints with applications to GPS and GLQ, (with Jan Van Mieghem) To appear in the European Journal of Operations Research, 2004. (Abstract + PDF)
6. Diffusion approximations for a Markovian Multi-Class Service System with “Guaranteed” and Best-effort” service levels, (with Assaf Zeevi), To appear in Mathematics of Operations Research, 2004. (Abstract + PDF)
7. Contact centers with a call-back option and real-time delay information, (with Mor Armony) To appear in Operations Research, 2004. (Abstract + PDF)
8. On customer contact centers with a call-back option: Customer decisions, sequencing rules, and system design, (with Mor Armony). To appear in Operations Research, 2004. (Abstract + PDF)
9. Pricing and capacity sizing for systems with shared resources: Scaling relations and approximate solutions, (with Assaf Zeevi) Management Science, 49(8): 1018-1038, 2003. (Abstract + PDF)
10. Continuous-review tracking policies for dynamic control of stochastic networks, QUESTA, 43:43-80, 2003. (Abstract + PDF)
11. Optimal dynamic auctions for revenue management, (with Gustavo Vulcano and Garrett van Ryzin) Management Science, 48(11): 1388-1407.  (Abstract + PDF)
12. Discrete-review policies for scheduling stochastic networks: Trajectory tracking and fluid-scale asymptotic optimality. Annals of Applied Probability, 10(3): 897-929, 2000. (Abstract + PDF)
13. Dynamic scheduling in multiclass queueing networks: Stability under discrete-review policies. QUESTA, 31:171-206, 1999. (Abstract + PDF)

Other Publications

• PhD thesis: Dynamic control of stochastic processing networks: A fluid model approach Advisors: Professors Michael Harrison Sunil Kumar (GSB) and Stephen Boyd (EE)
• Capacity realization in stochastic batch-processing networks using discrete-review policies (with Sunil Kumar). (Abstract + PDF)
• Design of dynamic control policies for stochastic processing networks via fluid models. In Proc. 1997 IEEE Conf. in Decision and Control (CDC97). (Abstract + PDF)
• High-performance algorithmic switched-current memory cell (with C.Toumazou and N. C. Battersby), Electronics Letters (13 Sept. 1990) vol.26, no.19, p. 1593-5.

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