Steven Zhang

Market Selection with Midpoint Matching: A Strategic Agent-Based Analysis

G Smithline, A Gu, and MP Wellman 6th ACM International Conference on AI in Finance (ICAIF), November 2025. To appear. Abstract We study midpoint matching through Nasdaq’s Midpoint Extended-Life Order (M-ELO) mechanism, which offers non-displayed…
Steven Zhang
, ,

Gabe Smithline Passes Prelim

PhD student Gabe Smithline passed the CSE prelim exam, based on his directed study project titled “Measuring Competition and Cooperation in LLM Bargaining: An Empirical Meta-Game Analysis.” Congratulations, Gabe!
Steven Zhang

Explicit Exploration for High-Welfare Equilibria in Game-Theoretic Multiagent Reinforcement Learning

A Nguyen, A Gu, and MP Wellman 42nd International Conference on Machine Learning (ICML), July 2025. Abstract Iterative extension of empirical game models through deep reinforcement learning (RL) has proved an effective approach for finding…
Steven Zhang
, ,

Steven Zhang

Steven Zhang

A game-theoretic approach for hierarchical epidemic control

F Jia, A Mate, Z Li, S Jabbari, M Chakraborty, M Tambe, MP Wellman, and Y Vorobeychik Autonomous Agents and Multi-Agent Systems, 39, 14:1–37 (2025). Abstract We design and analyze a multi-level game-theoretic model of hierarchical policy…
Steven Zhang
, ,

Chris Mascioli Passes Prelim

PhD student Christ Mascioli passed the CSE prelim exam, based on his directed study project titled “PyMarketSim: A High-Performance Multi-Agent Environment for Deep Reinforcement Learning in Financial Markets.” Congratulations, Chris…
Steven Zhang

Policy Abstraction and Nash Refinement in Tree-Exploiting PSRO

C Konicki, M Chakraborty, and MP Wellman 24th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), pp. 1163–1171, May 2025. Abstract Policy Space Response Oracles (PSRO) interleaves empirical game-theoretic analysis…
Steven Zhang
, , , , , , , ,

SRG paper wins Best Paper Award at ICAIF 2024

The paper titled "The Effect of Liquidity on the Spoofability of Financial Markets," led by Anri Gu, an undergraduate researcher with SRG, and coauthored by our recent PhD alum Yongzhao Wang, current PhD student Chris Mascioli, assistant research…
Steven Zhang

Market Making with Learned Beta Policies

Y Wang, R Savani, A Gu, C Mascioli, T Turocy, and MP Wellman 5th ACM International Conference on AI in Finance (ICAIF), pages 643-651, November 2024. Abstract In market making, a market maker (MM) can concurrently place many buy and sell…
Steven Zhang
, , , , , ,

Christine Konicki defends dissertation

On 21 October 2024, Christine Konicki successfully defended her PhD dissertation titled, "Exploiting Tree Structure in Empirical Game-Theoretic Analysis for Extensive-Form Games." Thanks to the dissertation committee members: Michael…