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Mar 29th 2011, 15:14 by The Economist online
The countries with the biggest share of academic citations
SCIENCE is becoming bigger and more global. That, at least, is the conclusion of a report published by Britain's Royal Society, the world’s oldest scientific academy. Emerging scientific nations are gaining influence, as measured by how often their researchers get cited in peer-reviewed journals. China and Spain, with 4% and 3% of global citations in 2004-2008, respectively, pushed Australia and Switzerland out of the top ten for the previous five years. Countries like the United States and Britain retain the the most clout, though. Together they still account for 38% of global citations in 2004-2008, down from 45% in the previous five years. Boffins the world over are also citing more eagerly, on average, than they used to. Citations grew by 55% between 1999-2003 and 2004-2008. Meanwhile, the number of published papers grew by just 33%. The growth in citations could be partly down to an increase in the proportion of published papers that are the product of international collaboration to 35% of the total, up from 25% 15 years ago.
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