To what extent can researchers' international movement be grasped from published data sources?

Using CVs or Short Bios in published resources, such as the Internet enables us to analyze many issues concerning researchers' careers. However, relatively little effort has been devoted to this area, and availability of this method, concerning target researchers, such as the sector of their institution, country of residence, their visibility (i.e., the impact of their publications) was not known enough. To trace this activity, we examine how many contributions that we were able to unveil in terms of authors' countries of origin by using two types of samples: highly cited papers and papers that have yet to be cited at all. Then, we analyze the influence of these researchers' international movement. The results show the full landscape of the movement's influence on national publication, the characteristics of each country in term of researchers' countries of origin, their research experience and acquisition of the research funds of both internationally moved and domestic researchers. Finally, we assess the limitations of the method and topic to be addressed concerning this method.