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    Stephen Qingyuan Yang

    On leave from Stanford to build RL environments at Mechanize. Research in AI, innovation, and political economy.

    Stephen Yang

    Stephen Yang

    Stanford, CA

    About Me

    I'm on leave from Stanford University (Math & CS) to work full-time at Mechanize. My research sits at the intersection of Artificial Intelligence and Economics, using LLMs to model innovation quality and disparate impact.

    Class of 2029
    AI Research
    Full Stack
    Active

    Current Focus

    Engineering at Mechanize.

    Let's Connect

    yang29@stanford.edu ↗

    Selected Works

    A collection of working papers and publications at the intersection of AI and Economics.

    Working Paper
    01

    Understanding Innovation Quality and Success with Large-Language Models

    Stephen Yang2025
    #innovation#machine-learning
    Working Paper
    02

    Understanding Patenting Disparities via Causal Human+Machine Learning

    Lin William Cong,Stephen Yang2025
    #machine-learning#patents
    Working Paper
    03

    Endogenous Fracturing under Partisan Voting

    Baozhong Yang,Stephen Yang2024
    #political-economy#voting-theory

    Trajectory

    2019

    Competitive Math

    AIME Qualifier

    Started exploring competitive mathematics through the American Invitational Mathematics Examination.

    2021

    MathCounts

    National Competition

    Competed at the MathCounts National Competition and won the Georgia state championship.

    2022

    Policy Debate

    TOC Circuit

    Qualified for the Tournament of Champions and competed at national-level debate tournaments.

    2023

    Research Begins

    Cornell DEFT Lab

    Joined Cornell's Digital Economy Lab as an external member. Began work on using ML to understand patent approval disparities.

    2023

    Conference Circuit

    Academic Presentations

    Presented research at conferences including Harvard, Vietnam Symposium, and Midwest Finance Association.

    2024

    First Publication

    Innovation & LLMs

    Published research on using large language models to analyze innovation quality. Joined Stanford's Venture Capital Initiative Lab.

    2024

    Math Team Captain

    State Competitions

    Led the varsity math team as captain. Competed at state-level tournaments in Georgia.

    2025

    New Beginnings

    Stanford & Superscored.ai

    Co-founded Superscored.ai (formerly LastingLearn) to build LLM-native education tools. Started studying Math & CS at Stanford.

    2026

    Mechanize

    RL Environments

    On leave from Stanford to build reinforcement learning environments for software engineering agents at Mechanize.

    Let's Connect

    Building at the intersection of AI and Economics

    Open to discussing research collaborations, innovation projects, and new ideas.

    © 2026 Stephen Qingyuan Yang

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