“…In recent years, research collaboration studies have explored many important components in collaboration activities such as collaboration patterns (Amjad et al, 2018;D'Ippolito and Rüling, 2019), collaboration strategies (Bozeman and Corley, 2004;Katz and Martin, 1997;Melin, 2000;Hackett, 2005) and collaboration outcomes (Rigby and Edler, 2005;Goddard and Isabelle, 2006) from different levels of collaboration such as individual, group, department, institution, sector and nation (Katz and Martin, 1997) using various methods including ethnographic inquiry (Knorr-Cetina, 1999), comparative case study research (Chompalov et al, 2002), large-scale surveys (Stokes and Hartley, 1989;Ponomariov and Boardman, 2008;Bozeman and Gaughan, 2011), social network analysis (Fleming et al, 2007;Ghosh et al, 2015;Wang and Hicks, 2015) and bibliometric analyses (Glänzel, 2002;Hou et al, 2008).…”