Estimates and bootstrap differences of centrality indices of the populist ideology dimensions network.

(A) Standardized values of centrality indices for each populist ideology dimension. (B) Bootstrap differences between nodes for the strength centrality index. (C) Bootstrap differences between nodes for the betweenness centrality index. (D) Bootstrap differences between nodes for the closeness centrality index. Fig 5B-5D report sample estimates on the diagonal, while bootstrap differences in the black and gray boxes. Black boxes indicate significant differences based on bootstrap mean estimates.