“…One stream of the literature has adopted the regional knowledge production function approach based on the spatial econometrics techniques, which has been taken as a powerful tool for capturing spatial spillover effects (Basile & Mínguez, ) and is based on the assumption that geography is a channel for spillovers (Charlot et al, ; Ó hUallacháin, & Leslie, ; Ponds et al, ). The related literature has initially highlighted the spatial weight matrix, the parametric estimation methods and the importance of tangible inputs, however, recently the focus has shifted to network weight matrix, the semiparametric estimation methods, and intangible factors (Basile & Mínguez, ; Charlot et al, ; Hazır, LeSage, & Autant‐Bernard, ; Lee, ; Maggioni at al., ; Miguelez & Moreno, ; Ponds et al, ). Another stream has taken social network analysis technique, a promising tool for capturing the structure and dynamics of relational spillovers effects, to enrich the literature on knowledge spillovers (Araújo, Gonçalves, & Taveira, ; Boschma & Ter Wal, ; Breschi & Lenzi, ; Fleming, King, & Juda, ; Gluckler, ; Ter Wal & Boschma, ).…”