“…Variation pertains to the diversity of departmental or organisational knowledge. This diversity can potentially be affected by several factors that the review investigates, such as the breadth and depth of an organisation's search activities (e.g., Garriga et al, 2013), connections with various types of partners (including domestic and foreign customers, universities, research institutes, consultancy companies, and competitors-e.g., Hsieh et al, 2018), the total number of weak or strong network ties (e.g., Todo et al, 2016), and network centrality (e.g., Dong et al, 2017). Certain IT-related antecedents and solutions (e.g., intra-/inter-company knowledge-sharing platforms such as wiki sites, justin-time production systems, and Active Directory Forest trust relationships) may potentially facilitate or hinder some of these variation-inducing (or reducing) factors.…”