Fig. 8: Comparison between the two components of population growth in European cities characterized by different density trajectories.
From: Higher immigration and lower land take rates are driving a new densification wave in European cities
The scatterplots show the values of natural change (on the x-axis) and net migration (on the y-axis) that characterized cities following different density trajectories. The curves show for each density trajectory the distribution (based on kernel density estimation) of the values of natural change (above the scatterplot) and net migration (to the right of the scatterplot). The peak of the curve corresponds to the most frequent value. Panel (a) refers to the first period (2006–2012), panel (b) to the second period (2012–2018). A comparison of the two panels reveals relevant changes in net migration associated to a shift from de-densification to densification and, to a smaller extend, from densification to de-densification (green and orange curves in the density plots to the right).
