Fig. 1From: “Open innovation” and “triple helix” models of innovation: can synergy in innovation systems be measured?Representations of the Triple Helix in terms of a Venn diagram (Fig. 1a; source: Etzkowitz and Leydesdorff 2000, p. 111) or as a triangle (Fig. 1b; source: Petersen et al., 2016, p. 667)Back to article page