“…As the inter-project knowledge transfer occurs between the source project and recipient project, the transfer is inevitably influenced by the project characteristics, which must be taken into consideration (Zhao et al, 2015). These characteristics mainly include uncertainty and ambiguity (Mehta et al, 2014), one-off characteristics of projects (Scarbrough et al, 2004), temporary (Ren et al, 2018;Sun et al, 2019), geographical distance (Wiewiora et al, 2009), similarity (Zhao et al, 2015;Ren et al, 2018) and urgency (Zhao et al, 2015;Ren et al, 2018;Sun et al, 2019). In these characteristics, similarity and urgency have been suggested as the important features influencing inter-project knowledge transfer (Zhao et al, 2015;Ren et al, 2018), which are taken as potential influencing factors in this study.…”