Ronen Gradwohl
Ronen Gradwohl

Assistant Professor of Managerial Economics & Decision Sciences

Print Overview
Ronen Gradwohl joined the MEDS department at the Kellogg School of Management in 2009 after obtaining his Ph.D. in computer science and applied mathematics from the Weizmann Institute of Science. Professor Gradwohl’s research focuses on strategic interactions in environments characterized by uncertainty about timing and communication, by the presence of irrational players, and by the possibility of collusion. His current research projects include a study of the properties of equilibria in such environments and the design of mechanisms in a distributed setting with faults. Additionally, he is interested in the design of distributed and cryptographic protocols resilient against both rational and adversarial manipulation.

Areas of Expertise
Game Theory
Mechanism Design
Print Vita
PhD, 2009, Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel
MSc, 2005, Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel
BSc, 2003, Electrical Engineering and Computer Science, College of Engineering, University of California, Berkeley, high honors

Academic Positions
Senior Lecturer, Managerial Economics & Decision Sciences, Kellogg School of Management, Northwestern University, 2009-present

Print Research
Research Interests
Game theory; Large games; Probability; Protocol design; Fault tolerance

Gradwohl, Ronen, Noam Livne and Alon Rosen. Forthcoming. Sequential Rationality in Cryptographic Protocols.
Gradwohl, Ronen, Noam Livne and Alon Rosen. 2011. Sequential Rationality in Cryptographic Protocols. Proceedings of the 2010 Annual IEEE Symposium on Foundations of Computer Science. 51: 623-632.
Gradwohl, Ronen and Omer Reingold. 2010. Partial Exposure in Large Games. Games and Economic Behavior. 68(2): 602-613.
Gradwohl, Ronen. 2009. Rationality in the Full-Information Model. Proceedings of the 2010 IACR Theory of Cryptography Conference. 7: 401-418.
Gradwohl, Ronen, Omer Reingold, Ariel Yadin and Amir Yehudayoff. 2009. Players' Effects under Limited Independence. Mathematics of Operations Research. 34(4): 971-980.
Gradwohl, Ronen, Moni Naor, Benny Pinkas and Guy N. Rothblum. 2009. Cryptographic and Physical Zero-Knowledge Proof Systems for Solutions of Sudoku Puzzles. Theory of Computing Systems. 44: 245-266.
Gradwohl, Ronen and Omer Reingold. 2008. Fault Tolerance in Large Games. Proceedings of the 2008 ACM Conference on Electronic Commerce. 9: 274-283.
Gradwohl, Ronen. 2008. Fault Tolerance in Distributed Mechanism Design. Proceedings of the 2008 Workshop on Internet and Network Economics. 4: 539-547.
Gradwohl, Ronen and Amir Yehudayoff. 2008. t-Wise Independence with Local Dependencies. Information Processing Letters. 106: 208-212.
Gradwohl, Ronen. 2008. Price Variation in a Bipartite Exchange Network. Proceedings of the 2008 International Symposium on Algorithmic Game Theory. 1: 109-120.
Gradwohl, Ronen, Salil P. Vadhan and David Zuckerman. 2006. Random Selection with an Adversarial Majority. Proceedings of the 2006 Annual International Cryptology Conference. 26: 409-426.
Gradwohl, Ronen, Guy Kindler, Omer Reingold and Amnon Ta-Shma. 2005. On the Error Parameter of Dispersers. Proceedings of the 2005 International Workshop on Randomization and Computation. 9: 294-305.
Working Papers
Gradwohl, Ronen and Omer Reingold. 2013. Fault Tolerance in Large Games.
Gradwohl, Ronen and Yuval Salant. 2011. How to Buy Advice.
Gradwohl, Ronen and Aviad Heifetz. 2013. Rationality and Equilibrium in Perfect-Information Games.
Gradwohl, Ronen and Eran Shmaya. 2013. Tractable Falsifiability.
Gradwohl, Ronen. 2013. Privacy in Implementation.
Dziuda, Wioletta and Ronen Gradwohl. 2012. Achieving Coordination under Privacy Concerns.

Print Teaching
Full-Time / Part-Time MBA
Business Analytics I (DECS-430-B)
Analytics is the discovery and communication of meaningful patterns in data. This course will provide students with an analytics toolkit, reinforcing basic probability and statistics while throughout emphasizing the value and pitfalls of reasoning with data. Applications will focus on connections among analytical tools, data, and business decision-making

Decision Making Under Uncertainty (DECS-433-0)

This course counts toward the following majors: Decision Sciences.

Provides frameworks for reasoning about decisions in uncertain environments. Case studies and experiments are used to motivate the importance of probabilistic reasoning to avoid the systematic biases that cloud managers' decision making. Formal probabilistic tools are introduced and their relevance to modern business issues is conveyed via cases, exercises, and class experiments. Some of the applications include: inventory management with uncertain demand, principal-agent models, herd behavior, selection bias, rare events, real options and risk. The course is self-contained, and should be of value to all students, including those with prior exposure to formal probability models.

Foundations of Managerial Economics I: Static Decision Models (MECS-460-1)
This course provides essential tools for those planning to create or apply economic theory. The course can be divided very broadly into feasibility, optimization, and fixed-point theory. More specifically, it covers linear programming, Kuhn-Tucker conditions, Brouwer and Kakutani fixed-point theorems, and supermodularity, while illustrating uses in finance, game theory, general equilibrium, and matching.

Foundations of Managerial Economics I: Game Theory (MECS-460-3)
This course covers conflict and cooperation among rational decision makers in economic, political and social systems. Topics include games in extensive, normal and characteristic function forms; Nash equilibrium and refinements; Bayesian games; infinitely repeated games; stochastic games; Nash bargaining solution; and cooperative games. The course is self-contained but closely coordinated with ECON-410-3. Prerequisite: Knowledge of probability theory and elementary linear algebra; simultaneous enrollment in ECON-410-3 or permission of the instructor.