“…Another key idea in social network theory is that social actors are able to establish social networks because they have similarities between themselves, for instance, similarities in socio-demographic characteristics, views, mindsets, behavior, positions, memberships in organizations, and others (Balkundi et al, 2007;Chan, 2017aChan, , 2017bChan et al, 2011Chan et al, , 2020Christakis & Fowler, 2009;Kilduff & Tsai, 2005;Norizan & Chan, 2022;Scott, 1991) . Examples of socio-demographic characteristics are age, religion, gender, level of education, ethnicity, place of birth, place of residence, and others.…”