Figure 11

Country and disciplines distribution inside the families. Panel A: countries are set on the horizontal axis, ranked by the relative presence in the database, while in the vertical axis, we report the families ranked by their size. A point at the intersection of the country-column and family-row indicates that the country is present in this family. The upper plot, is the column-marginal of the matrix represented in the central plot, representing the number of families where each country appears. The right plot is the row-marginal of the matrix represented in the central plot, representing the number of countries present in each family. Panel B: on the horizontal axis we put the disciplines, ranked by the relative presence in the database, in the vertical axis, the families ranked by the size. A point at the intersection of the discipline-column and family-row indicates that the discipline is present in that family. The upper plot, is the column-marginal of the matrix represented in the central plot, representing the number of families where each discipline appears. The right plot is the row-marginal of the matrix represented in the central plot, representing the number of disciplines developed in each family.