China could overtake US on research impact by mid-2020s

Trends analysis shows end of ‘US hegemony’ in research may not be far off

七月 12, 2018
Source: Getty

China could overtake the US on a key measure of research quality by the mid-2020s, with potentially major implications for worldwide academic collaboration, a new analysis suggests.

The analysis of trends in the Scopus database of scholarly research indicates that China’s rapidly improving performance on overall citation impact might see it match the US in as little as seven or eight years.

Across almost a dozen subject areas, including computer science and engineering, China already produces more papers indexed in Scopus than the US and is set to bypass its rival world power on overall research output by 2022 if today’s growth rate continues.

But the suggestion that the US could also be eclipsed on a measure of research quality before 2030 might alarm Washington, which is already engaged in a geopolitical tussle with China on the future of world trade and innovation.

M’hamed el Aisati, vice-president for funding, content and analytics at Elsevier, which owns Scopus, examined the recent trend in field-weighted citation impact, which accounts for differences in citation rates between disciplines and years, to estimate when China might catch the US.

China’s FWCI has risen from 0.78 in 2012 to a position just below the world average of 1 in 2017; in the same period, the US has drifted down from 1.47 to 1.34. If these trends continue, the countries’ FWCIs could cross over by 2025, Mr el Aisati said.

Mr el Aisati added that numerous factors could “accelerate or delay the crossing point” between the countries, including the performance of other emerging nations such as India and the future mobility of researchers. In his view, it was more likely that such factors would push back the date when China caught up.

He said that it was also important to note that some research might still be under-represented in Scopus – despite its being the largest abstract and indexing database worldwide – such as social sciences and arts and humanities studies typically published in local languages.

Questions have also been raised in the past about whether citation rates adequately reflect China’s rate of improvement on quality given fears that the country is plagued by academic fraud such as abuse of the peer-review process or misuse of visiting professorships.

However, suggestions of a rapid improvement in research quality are backed up by other data.

A report published in January by the US’ National Science Board, which advises Congress and the White House on science policy, included a graph based on Scopus data showing that the share of China’s science and engineering research making the top 1 per cent of cited articles had more than doubled from 2000 to 2014.

Also, the most recent release of the Nature Index, which analyses research published in 82 high-quality natural science journals, revealed that China’s share of authorship had jumped by 13 per cent in just one year as Western nations fell back.

Mr el Aisati said that it was entirely possible that countries in Europe and elsewhere could end up using China as the benchmark for quality in some fields. This could lead to Chinese researchers increasingly becoming the first choice for cross-border collaboration between academics in some nations.

“The US will remain a comparator for many countries, but it will become a challenge to sustain its leading position as it has it today,” Mr el Aisati said. 

Upwards trajectory: China’s predicted research rise



Marijk van der Wende, distinguished professor of higher education at Utrecht University in the Netherlands, said that the NSB report was “full of comments on China” and how it was “really becoming a serious scientific power in the world”, demonstrating that the US was acutely aware that its position was being seriously challenged.

She added that countries such as the US and the UK that were turning inwards politically should also be aware that many Asian nations – and the European Union – were increasing collaboration with China, stimulated by its Belt and Road initiative to improve connectivity across Asia and Europe.

Professor van der Wende, who is leading a major international project on China’s impact for global higher education, said that while research collaboration in the West was being potentially damaged by events such as Brexit, “multilateral cooperation is increasing in Asia and central Asia, with China also now reaching out to the EU in the light of President Trump’s trade policies. It is important for the US and the UK to take note that there are other dynamics going on.”

Yet she also emphasised that China’s rise in research was focused on a narrow set of scientific fields geared towards economic growth and geostrategic positioning.

“That raises a lot of other questions,” Professor van der Wende said, such as whether China was taking a “narrow route” to the top. “The conditions under which the arts and humanities operate in China are very different from those under science and technology.”

Meanwhile, Wei Zhang, a lecturer in education at the University of Leicester who has been analysing Chinese research quality, pointed out that although the country’s “rise to academic prominence” would “break the US hegemony in research excellence”, this was not an explicit goal of the Chinese government.

“It is an implicit [or] covert goal. Rising to [become] a research nation is a major driving force behind China’s successful transformation from a labour-intensive to a technology-intensive [economy],” she said.

In her view, improving research quality was a “secondary consideration” for the government and was driven by factors other than international competition.

“Although positioned as the world’s second biggest economy, China is also facing health and environmental challenges as well as other problems, such as low-end industries, inefficient economic structures and geographically imbalanced development,” Dr Zhang said.

“It’s critical that the country stay at the forefront of science, technology and innovation to surmount the challenges and mitigate those risks.”


Print headline: In research race, China on course to overtake US soon



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* According to the Japan Science and Technology Agency, China now ranks as the most influential country in four of eight core scientific fields, tying with the U.S. The agency took the top 10% of the most referenced studies in each field, and determined the number of authors who were affiliated with the U.S., the U.K., Germany, France, China or Japan. China ranked first in computer science, mathematics, materials science and engineering. The U.S., on the other hand, led the way in physics, environmental and earth sciences, basic life science and clinical medicine. China is also rapidly catching up in physics, where the U.S. has long dominated. It is spending more than $6 billion to build the world's largest particle accelerator, which could put it at the forefront of particle physics.