Whether polycentric spatial structure is conducive to regional coordinated development: A study on urban agglomerations in China

Peng Ji and Lilin Yuan

Growth and Change, 2023, vol. 54, issue 4, 940-961

Abstract: With the aggravation of congestion, pollution, and other negative externalities generated by continued urbanization, polycentric strategies have gradually become one of the main urban and regional spatial strategies. It remains unclear, however, whether the polycentric structure is conducive to regional coordinated development. This study examines these issues using China's urban agglomerations (UAs) as a sample. The Prolonged Artificial Nighttime‐light Dataset of China (PANDA) was used to measure the polycentric structure. The results of the nonparametric identification of sub‐centers show that almost all of China's UAs exhibit multiple (sub)centers, and the number of (sub)centers in most UAs has increased from 1992 to 2020. Empirical analysis shows that a polycentric structure is beneficial for narrowing regional disparities within the UA, and the narrowing effect of the polycentric structure on regional disparities increases as the distance between centers increases. Furthermore, a polycentric spatial structure is more conducive to the economic growth of small cities in UA, thereby promoting the coordinated development of regions within UA.

Date: 2023
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