I am a postdoc in the Decision, Risk, and Operations (DRO) Division at the Columbia Business School.
In May 2026, I completed my PhD in Computer Science at Harvard University, where I was fortunate to be advised by Prof. David C. Parkes and Prof. Yannai A. Gonczarowski. During my PhD, I also interned at Microsoft Research New England EconCS group.
In May 2021, I obtained my Bachelor of Engineering in Computer Science from Hong Kong University of Science and Technology.
Combining tools from pricing, matching, graph theory, and mechanism design, my research examines the complex incentive structures that govern multi-sided online markets and generates managerial insights for platform operators on revenue management, as well as policy insights for regulators on social welfare.
qiurui_ma [at] g [dot] harvard [dot] edu
Working Papers
Buying to Bundle: Optimal Sourcing from Monopolistic Sellers [paper] [poster]
with Nicole Immorlica, Brendan Lucier, 2026
-- presented at MIW 2026Pricing with Tips in Three-Sided Delivery Platforms [paper] [presentation]
with Yannai A. Gonczarowski, David C. Parkes, 2025
-- presented at Harvard EconCS Seminar 05/2025, MIW 2025, RMP 2025, INFORMS 2025
Refereed Conference PapersDisrupting Bipartite Trading Networks: Matching for Revenue Maximization [paper] [presentation]
with Lucas D'Amico-Wong, Yannai A. Gonczarowski, David C. Parkes
-- accepted to The 25th ACM Conference on Economics and Computation (EC), 2024
-- presented at EC 2024
-- Best Student Abstract in AAAI-24 Student Abstract and PosterPlatform Equilibrium: Analyzing Social Welfare in Online Market Places [paper] [presentation]
with Alon Eden, David C. Parkes
-- accepted to The 25th ACM Conference on Economics and Computation (EC), 2024
-- accepted to MSOM Supply Chain Management SIG, 2025
-- presented at EC 2024, CIRM Workshop "From Matching to Markets"Platform Behavior under Market Shocks: A Simulation Framework and Reinforcement-Learning Based Study [paper]
with Xintong Wang, Alon Eden, Clara Li, Alexander Trott, Stephan Zheng
-- accepted to The International World Wide Web Conference (WWW), 2023Evaluating Strategy Exploration in Empirical Game-Theoretic Analysis [paper]
with Yongzhao Wang, Michael P. Wellman
-- accepted to The 22nd International Conference on Autonomous Agents and Multiagent Systems (AAMAS), 2022Learning a Decision Module by Imitating Driver's Control Behavior [paper] [Demo]
with Junning Huang, Sirui Xie, Jiankai Sun, Chunxiao Liu, Dahua Lin, Bolei Zhou
-- accepted to 2020 Conference on Robot Learning (CoRL), 2020
PhD DissertationPricing, Matching, and Bundling: an Equilibrium Analysis of Online Platforms [paper]
Professional Activities
Program Committee for EC 2025, EC 2026, WWW 2024, WWW 2025, WWW 2026
Teaching
Fall 2023, Teaching Fellow for CS136 Economics and Computation, Harvard
Fall 2023 -- Spring 2025, Teaching Fellow for Data-Driven Marketing, Harvard Business Analytics Program, Harvard Business School