“…While the concept of variety and their role in economic development had been ignored in the mainstream economics, scholars in evolutionary economics have paid their attention to the role of variety in the structural change and the economic development (Pasinetti, 1983;Saviotti et al, 1996;Saviotti and Pyka, 2004;Saviotti et al, 2020). In this stream, the degree of relatedness driving knowledge spillover has been highlighted as a determinant of regional growth paths in the field of evolutionary economic geography and regional study (Boschma, 2017;Hassink et al, 2019;Hidalgo et al, 2018;Oinas et al, 2018).…”