International flows of Japanese and world's researchers

摘要

As a social issue in Japan, Japanese have fewer movements all over the world due to their single-tracked personnel system. It is difficult for students to study abroad because they get a disadvantage to find a job. Researchers are scared to lose their job once they step away from local routines, even for valid reasons. On the other hand, many Japanese Nobel laureates have studied abroad or stay out of Japan. The following hypothesis is led: highly talented researchers need to have experiences to live abroad. USA is an academic giant, who has large shares of papers in every domain, so it is easy to assume that researcher would be stimulated by staying there. However, where are other academic hubs in the world? The first purpose of this research is to trace movements of highly talented Japanese researchers, comparing with average highly talented researchers. The second purpose is to identify academic hubs for Japanese and World. The methodology of this research is to trace movements of top researchers on the map. Their locations are retrieved from affiliation address on Web of Science. These analyses will prove how frequently international research exchanges need, and they provide candidate locations to study abroad.