Number of New Top 2% Researchers from China and USA Over Time
Lei Liu, Song Yao, Kevin Liu
TL;DR
This study analyzes the growth and comparison of new top 2% researchers from China and the USA since 1980, revealing China's surpassing of the USA in total numbers by 2009 and notable trends in specific subfields.
Contribution
It provides a longitudinal comparison of top researchers from China and the USA, highlighting the rapid growth and shifting dominance over time.
Findings
China's new top 2% researchers surpassed the USA in 2009.
The log ratio of researcher numbers decreases linearly over time.
Significant growth observed in Engineering, Chemistry, and Strategic Technologies.
Abstract
In this paper we compare the numbers of new top 2% researchers from China and USA annually since 1980. We find that the log ratio of the numbers decreases almost linearly over time. As early as 2009, the total number of new top 2% researchers across all subfields from China exceeds that of USA. In particular, such trend is more striking in many subfields, e.g., Engineering, Chemistry, and Enabling & Strategic Technologies.
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Taxonomy
Topicsscientometrics and bibliometrics research