“…As Brun (2018) points out, this can be explained in part by political and administrative reasons, either the lack of a unit that coordinates these actions or because, even where they exist, they do not monopolise cooperation activities and/or compile all information publicly and on an ongoing basis. Consequently, the phenomenon often lacks a global vision (Ayllon and Leite, 2010), meaning that many of the qualitative studies tend to focus on case studies, which are limited in scope to the specific examples studied and are most certainly not exhaustive. Although there are no regular annual reports or comprehensive overviews, and SSC is still an essential missing piece in the global architecture of international development cooperation (Gosovic, 2016), several estimations made by the OECD and the UN provide enough information to show that it has been growing in importance in the last years (Zoccal Gomes and Esteves, 2018).…”