“…In the 1970s, the CSF model was developed in the field of management studies (Babatunde et al, 2016; Chen, 1999; Jefferies et al, 2002; Mohr & Spekman, 1994; Osei-Kyei & Chan, 2015; Rochart, 1979) and defined as a limited number of crucial areas in which results will lead to favorable goals (Chen, 1999; Rochart, 1979, 1982). During the last couple of decades, when the PPPs concept started to grow (Li et al, 2005; Tang et al, 2010; H. Wang et al, 2019), research on CSFs became a major topic in PPPs studies (e.g., Ke et al, 2009; Osei-Kyei & Chan, 2015; Tang et al, 2010): researchers conducted questionnaire surveys, case studies, and literature reviews, summarizing the CSFs for PPPs projects (e.g., Ameyaw et al, 2017; Jefferies et al, 2002; Kwak et al, 2009; Osei-Kyei & Chan, 2015, 2017b; Tiong, 1996; X.…”