The Royal Society has released Knowledge, Networks and Nations: Global Scientific Collaboration in the 21st Century.
Here's an excerpt:
Knowledge, Networks and Nations reviews, based on available data, the changing patterns of science, and scientific collaboration, in order to provide a basis for understanding such ongoing changes. It aims to identify the opportunities and benefits of international collaboration, to consider how they can best be realised, and to initiate a debate on how international scientific collaboration can be harnessed to tackle global problems more effectively.
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