I am an Assistant Professor of Economics at the Faculty of Business and Economics, the University of Hong Kong (HKU Business School). 

My research lies at the intersection of international trade, macroeconomics, and industrial organization, with a focus on trade and competition in the digital economy. I combine rich microdata with economic models to evaluate how trade and regulatory policies toward digital goods, AI, platforms, and tech companies shape welfare and global competition.

• Primary field: International Trade, AI/Digital Economics

• Secondary field: Macroeconomics, IO, Chinese Economy

Email: rqsun@hku.hk

Address: 512, 5/F, K.K. Leung Building, Pokfulam Road, Hong Kong

Google Scholar: Ruiqi Sun

Twitter @Rachel_pbcsf