Press release from Springer Nature
The US is the world’s largest contributor to high-quality scientific research papers, followed by China and Germany, according to the Nature Index 2016 Tables. Of the top ten countries in the Nature Index, only China has shown double-digit compound annual growth between 2012 and 2015 with some of its universities growing their contribution to the index as fast as 25% annually. US contributions have declined 2.8% in the same period from a very high base.
The Nature Index Tables, which show Nature Index calendar year outputs for the last four years, are released together today for the first time. The Nature Index is built on a country or institution’s contribution to about 60,000 high-quality papers each year, and counts both the total number of papers and the relative contribution to each paper. (See notes for editors for full definitions of measures.)
Harvard University, US, has the highest 2015 contribution of any university in the world. Stanford University (second), Massachusetts Institute of Technology (fourth), University of California, Berkeley (seventh), University of California, San Diego (ninth) and University of Michigan (tenth) — all from the US — occupy top ten positions. The University of Tokyo, Japan, is placed third, the Universities of Oxford and Cambridge, UK, are fifth and sixth, respectively, and ETH Zurich, Switzerland, is placed eighth.