Nicolás Stier Moses' homepage

Nicolás E. Stier Moses

Associate Professor
Decision, Risk, and Operations Division
Columbia Business School
Uris Hall, Room 406
3022 Broadway
New York, NY 10027-6902
Phone: 212-854-1622

Short Bio

Nicolas Stier Moses is an Associate Professor at the Decision, Risk and Operations Division of Columbia Business School. He received a Ph.D. degree from the Operations Research Center of the Massachusetts Institute of Technology. Professor Stier's research focuses on the study of the impact that self-minded agents have on decentralized systems. In particular, his goal is exploring mechanisms that can help coordinate agents, either by design or by offering the correct incentives. The main applications of his research are in supply chain management, and in distribution, transportation and telecommunication networks. His research articles have appeared in various journals such as Operations Research and Mathematics of Operations Research, two of the flagship journals of his profession. He received the 2006 Glover-Klingman Prize (best paper published in Networks) and the 2008 INFORMS Transportation Science and Logistics Section Best Paper Award. Prof. Stier teaches courses in MBA, Executive MBA and PhD programs about Managerial Decision Making and the interface between Operations and Game Theory.

Index: Teaching -- Publications -- Presentations

Teaching

Columbia Business School, B6014 Managerial Statistics. Core MBA course. Spring 2012, Fall 2010, Fall 2009, Fall 2008, Spring 2008, Fall 2007, Fall 2006, Fall 2005, Fall 2004.
Universita di Bologna and Universita di Roma Tor Vergata, Italy. An Introduction to Algorithmic Game Theory and Network Games. Ph.D. course. Summer 2008.
Business School, Universidad Di Tella, Argentina. Managerial Decisions I. Core Executive MBA course. Fall 2011, Fall 2010, Fall 2009, Fall 2008, Fall 2007, Fall 2006. Managerial Decisions. Executive Education Program. Spring 2008.
Columbia Business School, Seminar on Game Theoretic Models in Operations. Ph.D. course. Spring 2010. Spring 2006.

Publications and Working Papers

The competitive facility location problem in a duopoly (Coauthors: Y. Gur and D. Sabán).
Columbia Working Paper # DRO-2011-06, Dec 2011. Revision: Dec 2012.
- This paper is the full version of conference papers 'A Facility Location Problem under Competition' (NetEcon'11) and 'The Competitive Facility Location Problem in a Duopoly: Relations to the 1-Median Problem' (WINE'12)
Design and Control of a Public-Transportation Service Contract (Coauthors: A. Lodi, E. Malaguti and T. Bonino).
Working Paper OR-12-2 DEIS, University of Bologna, May 2012.
The Competitive Facility Location Problem in a Duopoly: Relations to the 1-Median Problem (Coauthor: D. Sabán).
Conference Version: Proceedings of the 8th Workshop on Internet & Network Economics (WINE'12), Liverpool, UK, 2012.
- For the full version, see 'The competitive facility location problem in a duopoly' above.
A Mean-Risk Model for the Stochastic Traffic Assignment Problem (Coauthor: E. Nikolova).
Columbia Working Paper # DRO-2011-03, May 2011. Revision: Dec 2011.
- Conference Version: Stochastic Wardrop Equilibrium.
  Proceedings of the Fourth Symposium on Algorithmic Game Theory (SAGT'11), Volume 6982 of Lecture Notes in Computer Science, pp. 314-325, Springer, 2011.
- Summary: Stochastic Selfish Routing.
  ACM SIGecom Exchanges, 11:1, 21-25, 2012.
A Facility Location Problem under Competition (Coauthor: Y. Gur).
Conference Version: Proceedings of the Workshop on The Economics of Networks, Systems, and Computation (NetEcon'11), San Jose, CA, 2011.
- For the full version, see 'The competitive facility location problem in a duopoly' above.
The Cost of Moral Hazard and Limited Liability in the Principal-Agent Problem (Coauthors: F. Balmaceda, S.R. Balseiro, and J.R. Correa).
Columbia Working Paper # DRO-2010-06, July 2010. Revision: Oct 2012.
- Conference Version: Proceedings of the 6th Workshop on Internet & Network Economics (WINE'10), Stanford, CA, 2010.
Investment in two sided markets and the net neutrality debate (Coauthors: P. Njoroge, A. Ozdaglar, and G. Weintraub).
Columbia Working Paper # DRO-2010-05, July 2010. Revision: Oct 2012.
- Related article in Columbia's Ideas at Work: Shifting Out of Neutral, Aug 24, 2010.
Wardrop Equilibria (Coauthors: J.R. Correa).
Wiley Encyclopedia of Operations Research and Management Science. Edited by J. J. Cochran. Wiley. 2011.
Pricing with Markups under Horizontal and Vertical Competition (Coauthors: J.R. Correa, and R. Lederman).
Columbia Working Paper # DRO-2010-04, Jun 2010. Revision: Dec 2010.
Part of the material in this working paper appears in Pricing with markups in industries with increasing marginal costs below.
- Conference version: Proceedings of the Behavioral and Quantitative Game Theory Conference, Newport Beach, CA, May 2010.
Analysis and Models of Bilateral Investment Treaties using a Social Networks Approach (Coauthors: F. Bonomo, and D. Sabán). [PDF]
Physica A, 389, 3661-3673, 2010.
A polyhedral study of the maximum edge subgraph problem (Coauthors: F. Bonomo, J. Marenco, and D. Sabán). [PDF]
Discrete Applied Mathematics, 160:18, 2573-2590, 2012.
- Conference version: Proceedings of the V Latin-American Algorithms, Graphs and Optimization Symposium (LAGOS'09), Gramado, Brazil, Electronic Notes in Discrete Mathematics, pp. 197-202, Elsevier, 2009.
Pricing with markups in industries with increasing marginal costs (Coauthors: J.R. Correa, R. Lederman, N. Figueroa).
Mathematical Programming A, forthcoming, 2013.
- Finalist in the 2009 INFORMS Junior Faculty Interest Group (JFIG) Paper Competition.
Competition, Market Coverage, and Quality Choice in Interconnected Platforms (Coauthors: P. Njoroge, A. Ozdaglar, and G. Weintraub).
Proceedings of the Workshop on The Economics of Networks, Systems, and Computation (NetEcon'09), Stanford CA, 2009.
Efficient and Fair Routing for Mesh Networks (Coauthors: A. Lodi, E. Malaguti).
Mathematical Programming B, 124:1-2, 285-316, 2010.
- Full Version at Optimization Online. Revision: Jun 2009.
- Conference Version: Proceedings of the 6th ALIO/EURO Conference on Applied Combinatorial Optimization, Dec 2008.
Eliciting Coordination With Rebates (Coauthor: P. Maillé).
Transportation Science, 43:4, 473-492, 2009.
- Finalist in the 2007 INFORMS Junior Faculty Interest Group (JFIG) Paper Competition.
- Related article in Columbia's Ideas at Work: Rewarding efficient commuters, easing traffic congestion, July 12, 2007.
Stackelberg Routing in Atomic Network Games (Coauthor: J.R. Correa).
Columbia Working Paper # DRO-2007-03, Feb 2007.
A Note on the Precedence-Constrained Class Sequencing Problem (Coauthors: J.R. Correa and S. Fiorini). [PDF]
Discrete Applied Mathematics, 155:3, 257-259, Feb 2007.
Wardrop Equilibria with Risk-Averse Users (Coauthor: F. Ordoñez).
Transportation Science, 44:1, 63-86, Feb 2010.
- Online Supplement: figures corresponding to other runs that couldn't be included in paper for lack of space.
- Instances used in paper: files and documentation (see readme file).
- Conference Version: Robust Wardrop Equilibrium.
  Proceedings of the 1st International Conference on Network Control and Optimization (NET-COOP'07), Volume 4465 of Lecture Notes in Computer Science, pp. 247-256, Springer, 2007.
The Impact of Oligopolistic Competition in Networks (Coauthors: R. Cominetti and J.R. Correa).
Operations Research, 57:6, 1421-1437, 2009.
- Conference Version: Network Games with Atomic Players.
  Proceedings of the 33rd International Colloquium of Automata, Languages and Programming (ICALP'06), Volume 4051 of Lecture Notes in Computer Science, Part I, pp. 525-536, Springer, 2006.
A Geometric Approach to the Price of Anarchy in Nonatomic Congestion Games (Coauthors: J.R. Correa and A.S. Schulz).
Games and Economic Behavior, 64, 457-469, 2008.
- Conference Version: On the Inefficiency of Equilibria in Nonatomic Congestion Games.
  Proceedings of the 11th Conference on Integer Programming and Combinatorial Optimization (IPCO'05), Volume 3509 of Lecture Notes in Computer Science, pp. 167-181, Springer, 2005.
Fast, Fair, and Efficient Flows in Networks (Coauthors: J.R. Correa and A.S. Schulz).
Operations Research, 55:2, 215-225, 2007.
- Conference Version: Computational Complexity, Fairness, and the Price of Anarchy of the Maximum Latency Problem.
  Proceedings of the 10th Integer Programming and Combinatorial Optimization Conference (IPCO'04), Volume 3064 of Lecture Notes in Computer Science, pp. 59-73, Springer, 2004.
Efficiency and Fairness of System-Optimal Routing with User Constraints (Coauthor: A.S. Schulz).
Networks, 48:4, 223-234, 2006.
- Received the 2006 Glover-Klingman Prize (best paper published in Networks during 2006) (citation)
- Conference Version: On the Performance of User Equilibria in Traffic Networks.
  Proceedings of the 14th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA'03), Society of Industrial and Applied Mathematics, Philadelphia, PA, pp. 86-87, 2003.
  (This conference paper also contains the preliminary results of 'Selfish Routing in Capacitated Networks'.)
System-Optimal Routing of Traffic Flows with User Constraints in Networks with Congestion (Coauthors: O. Jahn, R.H. Möhring and A.S. Schulz).
Operations Research, 53:4, 600-616, 2005.
- 2008 INFORMS Transportation Science and Logistics Society Best Paper Award.
- Online Appendix with the rest of the simulations' output.
- The network instances that we used can be found in Transportation Network Test Problems's website.
Selfish Routing in Capacitated Networks (Coauthors: J.R. Correa and A.S. Schulz).
Mathematics of Operations Research, 29:4, 961-976, 2004.
- Honorable Mention in the 2006 INFORMS Transportation Science and Logistics Section Best Paper Award.
- Research brief in Columbia's Ideas at Work.
Models, Complexity and Algorithms for the Design of Multifiber WDM Networks (Coauthors: A. Ferreira, S. Perennes, A. Richa and H. Rivano).
Telecommunication Systems, 24:2-4, 123-138, Oct 2003.
On the Application of Accelerating Simulation Methods in Network Analysis (Coauthors: J. Incera and G. Rubino).
Proceedings of the International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA'2000), Las Vegas, NV, Jun 2000.
GIS representation of buses in Buenos Aires (Coauthor: G. Deferrari).
Proceedings of the VII Transit and Transport Conference, Santiago, Chile, Oct 1995.

Theses

Selfish versus Coordinated Routing in Network Games.
Ph.D. Thesis, Sloan School of Management, MIT, May 2004. Advisor: A.S. Schulz.
- Received an Honorable Mention in the 2006 INFORMS Telecommunications Section Ph.D. Dissertation Award.
- Finalist in the 2004 INFORMS Transportation Science and Logistics Dissertation Prize.
Importance Splitting Methods for Simulation.
Master's Thesis, Mathematics and Computer Science Departments, Universidad de Buenos Aires, Argentina, Aug 1998. Advisor: G. Rubino.
- Received the 3rd Prize in the VI Master's Thesis Contest organized by CLEI-UNESCO (Computer Science Latin American Research Center).

Selected Presentations in Conferences

Pricing with Markups under Horizontal and Vertical Competition
Utah Winter Operations Conference, UT, Jan 2010.
Network Games and the Efficiency of their Equilibria
Transportation and Logistics Dept., Universidad Catolica, Santiago, Chile, Jun 2009.
Stackelberg Routing in Atomic Network Games
INFORMS Annual Meeting, Seattle, WA, Nov 2007.
Robust Wardrop Equilibrium and How to Price to Get It
First International Conference on Network Control and Optimization (NET-COOP'07), Avignon, France, June 2007.
Eliciting Coordination with Rebates
INFORMS Annual Meeting, Pittsburgh, PA, Nov 2006.
Network Games with Atomic Players
Bell Labs, Lucent Technologies, June 2006.
On the Inefficiency of Equilibria in Congestion Games
DIMACS Workshop on Large Scale Games, Northwestern University, Evanston, IL, April 2005.
Computational Complexity, Fairness, and the Price of Anarchy of the Maximum Latency Problem [ps.gz]
10th Integer Programming and Combinatorial Optimization Conference (IPCO'04), New York, Jun 2004.
Selfish versus Coordinated Routing in Network Games
Ph.D. defense, Operations Research Center, MIT, May 2004.
System-Optimal Routing of Traffic Flows with User Constraints in Networks with Congestion [ps.gz]
INFORMS Annual Meeting, Atlanta, GA, Oct 2003.
Selfish Routing in Capacitated Networks [ps.gz]
18th International Symposium on Mathematical Programming (ISMP'03), Copenhagen, Denmark, Aug 2003.

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