Fig. 1From: Effect of international collaboration on knowledge flow within an innovation system: a Triple Helix approachIllustration of the method used by Leydesdorff and Sun (2009), Kwon (2011) and Kwon et al. (2012) (a) and the one proposed by this study (b) for integrating the international co-authorship in the Triple Helix relations. Sectors are represented by small circles meaning the intra-sectorial relations (loops)Back to article page