“…In particular, we have calculated the PageRank (Brin & Page, 1998) which is an indicator that shows the relative importance of a particular node, and one that has been widely popularised by the search engine Google. Although originally the PageRank algorithm was first used as a metric for evaluating webpages, its ideas have influenced other areas such as citation analysis (Ma, Guan, & Zhao, 2008) and journal evaluation (Bollen, Rodriguez, & Van de Sompel, 2006). In this study, we propose the value given by PageRank as a form to evaluate the relative importance of a country in terms of collaborations in the network.…”