Journal of Geographical Sciences

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Polycentric urban development with state-led administrative division adjustment: A policy insight for urban spatial transformation

CHEN Youlin, YU Peiheng, WANG Lei, CHEN Yiyun, YUNG Hiu Kwan Esther

地理学报(英文版), 2023, 33(12): 2400-2424. DOI: 10.1007/s11442-023-2182-y

Initials	Variables	Units	Mean	Standard deviation	Min	Max
POLY	Urban polycentricity index	—	0.5199	0.1289	0.0093	0.9574
ADA	Administrative division adjustment	—	0.2263	0.4185	0.0000	1.0000
BR	Boundary restructuring	—	0.0882	0.2836	0.0000	1.0000
HR	Hierarchy reorganization	—	0.1891	0.3917	0.0000	1.0000
SE	Proportion of secondary industrial output in the national output	%	0.4579	0.1136	0.0800	0.9205
RA	Paved road area per capita	10² m	0.1364	0.0918	0.0117	1.0837
TS	Ratio of population in tertiary sector to the total population	%	0.5293	0.1441	0.1657	0.9448
CA	Number of cars in circulation	10⁴ cars	0.1699	0.3325	0.0046	3.8728
IE	Net investment in real estate	10¹¹ yuan	0.2739	0.5501	0.0007	4.2363

Table 1 Definition and statistical description of the variables

本文的其它图/表

Figure 1 Conceptual framework of polycentric urban development with administrative division adjustment
Figure 2 The geographic location of cities that implemented administrative division adjustment between 2013 and 2018
Note: This map is based on the standard map with approval number GS(2020)4619 downloaded from the standard map service website of the National Bureau of Surveying, Mapping, and Geographic Information, and the base map has not been modified.
Figure 3 Regions with administrative division adjustment and population centers of four cities in China from 2013 to 2018. (a) Shanghai, (b) Hangzhou, (c) Chongqing and (d) Tianjin
Figure 4 The spatiotemporal evolution of urban polycentricity in China in different years: (a) 2013, (b) 2014, (c) 2015, (d) 2016, (e) 2017 and (f) 2018
Note: This map is based on the standard map with approval number GS(2020)4619 downloaded from the standard map service website of the National Bureau of Surveying, Mapping, and Geographic Information, and the base map has not been modified.
Table 2 The global Moran’s I index of polycentric urban structure
Figure 5 The scatter plots of global Moran’s I index in different years: (a) 2013, (b) 2014, (c) 2015, (d) 2016, (e) 2017 and (f) 2018
Figure 6 The parallel trend test results of the SDID model
Table 3 The selection test of the SDID model
Table 4 Benchmark regression results of the OLS and SDID models
Table 5 The direct, indirect and total effects of SDID model in columns (4), (5) and (6) of Table 4
Table 6 The heterogeneity analysis of administrative division adjustment on urban polycentricity
Table 7 The mechanism analysis of administrative division adjustment on urban polycentricity
Table 8 The robustness test of administrative division adjustment on urban polycentricity
Figure 7 Policy related to administrative division adjustment and urbanization

模态框（Modal）标题

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