These days, we are seeing increasing demand for accurate measurement of the effectiveness of policies. However, it has been difficult to measure the effectiveness of policies accurately, because of the limited number of methods, which include interviews, analysis based on the number of patents, and analysis of theses. Therefore, there is increasing demand fora methodology for precise measurement. Through this research, we would like to be part of those researches trying to satisfy this demand by adopting biblio metric analysis. In this paper, we introduced network analysis in order to evaluate a country'spresence in the academic field. In particular, we focused on three centralities, betweenness centrality, eigenvector centrality, and closeness centrality, in the measurement. As a result, it is shown that Singaporean institutes have higher centrality, especially betweenness centrality, as well as a high ratio of international researchers.