The close connection between US and China in scientific research and education in the 2000s produced a large group of … China-born researchers who work in the US ("diaspora") and a larger group of China-born researchers who gained US …-research experience and returned to do their research in China ("returnee"). Analyzing 2018 Scopus data on research papers, we estimate …

collaborated with scientists in China during 2010-2014 with those who collaborated with scientists in other countries outside the U … coincide with a decline in the productivity of scientists with previous collaborations with scientists in China, especially …-investigation NIH funding and U.S.-China collaborations. We also provide suggestive evidence that our findings matter for the aggregate …

Popular literature suggests a rapid narrowing of the technology gap between China and the U.S. based on large … (especially in sciences) in China in recent years. Little literature attempts to measure the technology gap directly using … the later reflect both differing factor endowments and technology parameters. This paper assesses changes in China …