Figure 4
The horizontal axis at the bottom is labeled “Relevance degree (Centrality)”, and the vertical axis on the left is labeled “Development degree (Density)”. The upper-left quadrant is labeled “Niche Themes”. The upper-right quadrant is labeled “Motor Themes”. The lower-left quadrant is labeled “Emerging or Declining Themes”. The lower-right quadrant is labeled “Basic Themes”. Three circular clusters appear on the map. In the upper-right quadrant within “Motor Themes”, a red cluster contains the keywords “impact”, “sustainability”, and “blockchain”. Near the center of the map at the intersection of the dashed axes, a blue cluster contains the keywords “management”, “performance”, and “technology”. In the lower-left quadrant within “Emerging or Declining Themes”, a small green cluster contains the keyword “trends”.Thematic maps analysis. Source: Authors’ elaboration based on Bibliometrix software