And, behold, there are last which shall be first, and there are first which shall be last.

καὶ ἰδοὺ εἰσὶν ἔσχατοι οἳ ἔσονται πρῶτοι, καὶ εἰσὶν πρῶτοι οἳ ἔσονται ἔσχατοι.

Luke 13:30Nestle 1904 · King James Version

Research lab · Hong Kong — Beijing — Remote

Digital markets, mechanism design, and AI-native economic inquiry.

Adrasteia Labs brings together economists and computer scientists to study digital currency, DeFi, market design, and empirical strategy for emerging economic systems.

Founded by a group of doctoral and undergraduate students from Peking University, the University of Hong Kong, the University of Chicago, the University of Michigan, and other universities across China and North America, the lab has grown over several years into a premier student research collective at the frontier of finance, technology, and economic design.

Αδράστεια — “she from whom there is no escape” — a fitting patron for the study of incentive-compatible mechanisms.

10P(allocation)priority scoreτthreshold rulerandomized smoothing
Fig. 1 — A hard eligibility cliff and its randomized smoothing. After “Smoothing the Cliff” (Hayashi, Yu, Zhang & Qi, 2025).

Research

Three areas shape the portfolio.

Digital Currency and FinTech

Research on crypto markets, DeFi, smart contracts, and the financial microstructure of emerging digital systems.

Mechanism Design and Market Design

Fair and incentive-compatible allocation rules, strategic behavior, and algorithmic game theory in financial and digital markets.

AI for Social Science

AI-driven workflows, empirical automation, and meta-science approaches for faster and more transparent research across economics and the social sciences.

Selected work

Publications and working papers.

2026 Working Paper

A Blessing in Disguise? DeFi Exploits and Short-Horizon Responses in U.S. Commercial Paper Spreads

Heikichi Hayashi and Tse Hou (University of Minnesota and Federal Reserve Bank of Minneapolis) (authors in alphabetical order)

Working Paper

Presented at: Yale Pre-Doctoral Economics Conference (Yale Tobin Center); Asia Meeting of the Econometric Society, China (HKU Business School); FMA International European Conference*; 5th Annual Hong Kong Conference on FinTech and AI in Finance (City University of Hong Kong) (* presented by coauthor)

2026 Accepted

Adrasteia: AI Agent Workflow for Economic Paper Writing

Heikichi Hayashi, Huanxi Zhang (University of Wisconsin-Madison), Karl Yu (Boston College), Ruoran Lai (Sun Yat-sen University), and Jiazhuo Li (University of Michigan)

Accepted at the ICML 2026 Workshop on AI for Math

Presented at: EC'26 Workshop on AI-Driven Research in EconCS (oral contributed talk); Can AI Do Theory? Workshop at STOC TheoryFest 2026 (Google Research); AEA Annual Meeting 2027 (scheduled)

2025 Under Review

Smart Contracts, Dumb Money: Open Source Lemons

Heikichi Hayashi, Weiyu Qi (University of Chicago), Karl Yu (Boston College), and Huanxi Zhang (University of Wisconsin-Madison) (authors in alphabetical order)

Kilts Center at Chicago Booth Marketing Data Center Paper

Presented at: Bank of Italy ToDeFi 2026*; CCER Summer Institute (* presented by coauthor)

2025 Under Review

Smoothing the Cliff: Fair and Incentive-Compatible Priority Allocation via Randomized Mechanisms

Heikichi Hayashi, Weiyu Qi (University of Chicago), Karl Yu (Boston College), and Huanxi Zhang (University of Wisconsin-Madison) (authors in alphabetical order)

Presented at: EC'26 Workshop on Online Learning and Economics; 12th Tsinghua University SEM Graduate Workshop (Outstanding Presentation Paper Award); EEA-ESEM*; ESIF Economics and AI+ML Meeting (Cornell University)*; KOF Swiss Economic Institute at ETH Zurich*; Peking University National School of Development (* presented by coauthor)

2025 Working Paper

The Private Enforcer: Algorithmic Deterrence and the Shadow Tax on Insider Trading

Heikichi Hayashi, Ruoran Lai (Sun Yat-sen University), Weiyu Qi (University of Chicago), and Karl Yu (Boston College) (authors in alphabetical order)

Working Paper

Presented at: Federal Reserve Board Summer Workshop on Money, Banking, Payments, and Finance (Gerzensee, Switzerland); China Financial Research Conference (Tsinghua PBCSF); Asia Meeting of the Econometric Society, China (HKU Business School); 38th Asian Finance Association Conference* (* presented by coauthor)

People

Economists and computer scientists across five departments.

Full team

Founding Director and Department Coordinator

Heikichi Hayashi

Adrasteia Labs; Research Assistant at The University of Hong Kong

FinTech · Economics and computation · Algorithmic game theory

Core Member

Weiyu Qi

University of Chicago, Department of Computer Science

Blockchain algorithms · CS theory · AI

Core Member

Karl Yu

Boston College, Economics Department

Crypto incentives · Algorithmic game theory · Mechanism design

Opportunities

Join us.

We welcome talented junior undergraduates and high school students who love blockchain and cryptocurrency, or who want to learn game theory and mechanism design and their applications, to join us or work with us as research assistants. We keep close ties with blockchain research clubs at many universities and secondary schools.

Past research assistants include students from Sun Yat-sen University, the Central University of Finance and Economics, and Beijing National Day School.

Contact

Working with the lab.

For research inquiries, collaborations, workshop invitations, or academic correspondence, write to the lab directly.