Fig 3. Scaling of representative variables for all the municipalities (gray) and for the selected ones (colored).

Each dot represents one municipality, the x-axis indicates the population of a municipality and the y-axis indicates its variable (A—socio-economic variable: GDP; B—infrastructure variable: Length of Street Network); Colored and Gray continuous lines indicate the best-fit line from OLS regressions for the log-transformed data for each group and the black dashed line indicates the linear scaling.