Global mobility and migration of scientists is an important modern phenomenon with economic and political implications. As scientists become ever more footloose it is important to identify general patterns and regularities at a global scale and how it impacts a country’s scientific output. The analysis of mobility and brain circulation patterns at global scale remains challenging, due to difficulties in obtaining individual level mobility data. In this work we trace intercity and international mobility through bibliographic records. We reconstruct the intercity and international mobility network of 3.7 million life scientists moving between 5 thousand cities and 189 Countries. In this exploratory analysis we offer evidence that international scientist mobility is marked by national borders and show that international mobility boosts the scientific output of selected countries.

中文翻译：

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全球科学家流动网络中的城市和国家

科学家的全球流动和迁移是一种重要的现代现象，具有经济和政治意义。随着科学家越来越放任自流，重要的是要确定全球范围内的一般模式和规律以及对国家科学产出的影响。由于难以获得个人层面的流动性数据，因此在全球范围内对流动性和脑循环模式的分析仍然具有挑战性。在这项工作中，我们通过书目记录来追踪城市间和国际流动性。我们重建了在5,000个城市和189个国家之间迁移的370万生命科学家的城市间和国际流动网络。