Inequalities that use \(\textless\) or \(\textgreater\) symbols are plotted with a dashed line to show that the line is not included in the region. Inequalities that use ≤ or ≥ symbols are plotted ...

Since their emergence, cities acted as major engines of economic and social development. The rising impact of urban life is testified by the 2018 Revision of UN’s World Urbanization Prospect, showing ...