Spatial dependence in the rank-size distribution of cities - weak but not negligible.

Spatial dependence in the rank-size distribution of cities - weak but not negligible.
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DOI:
10.1371/journal.pone.0246796
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发表时间:
2021
期刊:
影响因子:
3.7
通讯作者:
Bergs R
Bergs R
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Bergs R

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幂律分布是几种自然和社会现象的特征。城市的齐夫定律就是其中之一。该研究着眼于全球规律是否独立于城市的不同空间分布的问题。为此,使用随机数生成城市的典型Zipfian秩大小分布。然后将该分布转换为两种不同的空间坐标设置。对于估计,变量秩和大小是由空间计量方法中的空间依赖性考虑补充。研究结果表明,距离可能有影响。四个国家的分析进一步证实了这一发现,尽管估计结果显示影响不大。
Power law distributions characterise several natural and social phenomena. Zipf’s law for cities is one of those. The study views the question of whether that global regularity is independent of different spatial distributions of cities. For that purpose, a typical Zipfian rank-size distribution of cities is generated with random numbers. This distribution is then cast into two different settings of spatial coordinates. For the estimation, the variables rank and size are supplemented by considerations of spatial dependence within a spatial econometric approach. Results suggest that distance potentially matters. This finding is further corroborated by four country analyses even though estimates reveal only modest effects.
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