The Degree of Urbanisation is a new definition of cities, towns and semi-dense areas, and rural areas endorsed by the UN Statistical Commission. The urban population share according to the Degree of Urbanisation is similar to the one based on national definitions in the Americas,Europe and Oceania, but considerably higher in Africa and Asia. An empirical analysis and a comparison of concepts suggest that towns are likely to be classified as rural areas in Africa and Asia and as urban areas in other parts of the world. The paper shows that cities cover only a small share of land, but this share doubled over the past forty years, as has the number of cities.
Although cities have expanded rapidly, their population grew even faster leading to higher densities. The paper tests two classic urban facts: 1) the cities and towns as defined by the Degree of Urbanisation closely follow Zipf’s law 2) the population shares in urban areas, cities and especially metropolitan areas are positively and significantly correlated with the level of economic development. Lastly, the sensitivity of the classification of population and land are tested by varying the population size and density thresholds as well using a different global population grid.
DIJKSTRA Lewis;
FLORCZYK Aneta;
CARNEIRO FREIRE Sergio Manuel;
KEMPER Thomas;
MELCHIORRI Michele;
PESARESI Martino;
SCHIAVINA Marcello;
2021-11-10
ACADEMIC PRESS INC ELSEVIER SCIENCE
JRC122903
0094-1190 (online),
https://www.sciencedirect.com/science/article/pii/S0094119020300838,
https://publications.jrc.ec.europa.eu/repository/handle/JRC122903,
10.1016/j.jue.2020.103312 (online),
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