No abstract

The internationalization and specialization of science confront scientists with opportunities and sometimes even a need to become internationally mobile during their careers. Against this background, we systematically reviewed empirical studies on the effects that mobility across national borders has on the careers of scientists. Using several search channels, we identified 96 studies – published between 1994 and 2019 – that examine how international mobility influences eight dimensions of scientists’ careers. Listed in descending order of the number of identified studies, these dimensions comprise scientists’ (1) international networks, (2) scientific productivity, (3) occupational situation, (4) scientific impact, (5) competences and personality, (6) scientific knowledge, (7) access to research infrastructures and funds, and (8) symbolic capital. Existing research provides robust evidence of positive effects of international mobility on the broadening of scientists’ networks. Moreover, several solid studies examine the effect of international mobility on scientists’ productivity, impact, and occupational situation. Most of them find positive effects, but some also find no or negative effects. Studies on the other career dimensions are not only less frequent, but mostly also less robust. Our review reveals potential to advance research in the field by using less selective samples and more rigorous methodological approaches. Intending to spur further theory-driven empirical research, we develop a model integrating research on the identified career dimensions and derive various questions for future research. We conclude by highlighting policy implications of existing research.

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No abstract

Although international mobility is associated with various positive outcomes, the process of knowledge transfer resulting from working abroad has not yet been sufficiently investigated. The main reason why the relationship between international mobility and knowledge transfer is still underresearched is that there are not yet reliable methods to identify knowledge transfer. The current study aims to close this research gap by introducing a network-based approach that is capable of indicating knowledge flows. Assuming that coauthorship constitutes one instance through which knowledge transfer can take place, the approach relies on coauthorship networks. In the first approach to be presented, the transfer of published knowledge is operationalized as the use of rarely cited publications. In the second approach, the transfer of methodological know-how is operationalized as the occurrence of lexical terms in abstracts of publications. The study focuses on German scientists who were internationally mobile and acted as knowledge transmitters between the country of mobility and Germany. The results show that the network-based approach is well suited to identifying the sources of knowledge, knowledge transmitters, and the recipients of knowledge. Moreover, the findings suggest that knowledge transfer processes are field specific.