Association between population distribution and urban GDP scaling

Urban scaling and Zipf’s law are two fundamental paradigms for the science of cities. These laws have mostly been investigated independently and are often perceived as disassociated matters. Here we present a large scale investigation about the connection between these two laws using population and...

Celý popis

Uloženo v:

Podrobná bibliografie
Vydáno v:	PloS one Ročník 16; číslo 1; s. e0245771
Hlavní autoři:	Ribeiro, Haroldo V., Oehlers, Milena, Moreno-Monroy, Ana I., Kropp, Jürgen P., Rybski, Diego
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	United States Public Library of Science 22.01.2021 Public Library of Science (PLoS)
Témata:	Analysis Biology and Life Sciences Cities Datasets Earth Sciences Earthquakes Economic aspects Economies of scale Editing Environmental management Environmental science Forecasts and trends GDP Geography Gross Domestic Product Methodology Permutations Population Population distribution Research and Analysis Methods Reviews Scaling Science policy Social Sciences Urban areas Urban population Urban populations Values United States Germany
ISSN:	1932-6203, 1932-6203
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	Urban scaling and Zipf’s law are two fundamental paradigms for the science of cities. These laws have mostly been investigated independently and are often perceived as disassociated matters. Here we present a large scale investigation about the connection between these two laws using population and GDP data from almost five thousand consistently-defined cities in 96 countries. We empirically demonstrate that both laws are tied to each other and derive an expression relating the urban scaling and Zipf exponents. This expression captures the average tendency of the empirical relation between both exponents, and simulations yield very similar results to the real data after accounting for random variations. We find that while the vast majority of countries exhibit increasing returns to scale of urban GDP, this effect is less pronounced in countries with fewer small cities and more metropolises (small Zipf exponent) than in countries with a more uneven number of small and large cities (large Zipf exponent). Our research puts forward the idea that urban scaling does not solely emerge from intra-city processes, as population distribution and scaling of urban GDP are correlated to each other.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 Competing Interests: Haroldo Ribeiro is an Academic Editor for PLOS ONE and Diego Rybski is a guest editor for the PLOS ONE call for papers on Cities as Complex Systems does not alter our adherence to PLOS ONE policies on sharing data and materials.
ISSN:	1932-6203 1932-6203
DOI:	10.1371/journal.pone.0245771