Andrew J. Sinclair studies China's economic system. His research examines the relationship between institutions and markets, focusing on how a country's political, economic, and cultural institutions shape incentives and economic behavior. He studies the institutional differences between China and the West and analyzes how these differences influence market outcomes, both domestically and globally. His work seeks to develop a unified framework for understanding Chinese economics.

Sinclair received his PhD in financial economics from Yale University and previously served on the faculty at The University of Hong Kong (HKU). His research has been published in leading economics journals, including The Economic Journal and the Journal of Economic Theory, and has been featured by The Financial Times, Bloomberg, and Vox China. He has been invited to present his work on China at leading academic, policy, and financial institutions, including Yale University, the Federal Reserve Board of Governors, BlackRock, and the Hoover Institution at Stanford.

In recognition of his commitment to teaching, Sinclair received the Faculty Outstanding Teaching Award (Undergraduate Teaching) from the Faculty of Business and Economics at HKU in 2022, and the HSS Brass Division Award for Teaching from the Division of the Humanities and Social Sciences at Caltech in 2025.

A list of Sinclair's research papers can be found on his website.