One of the important shortcomings of China’s high-quality economic development is that the gap in regional economic development brought about by the boundary effect of the administrative region is too large, and the market integration effect of digital infrastructure construction accelerates the integration of different types of regional markets. it can promote the economic development of the border region of the administrative region, and help to narrow the gap of regional economic development and regional coordinated development. This paper takes the implementation of the policy of "Broadband China" as the proxy variable of digital infrastructure construction, and whether it is located on the provincial boundary line as the division standard of different types of regions. the double difference method is used to empirically test the role of digital infrastructure construction in narrowing the gap of regional economic development. The study found that the "broadband China" policy has a greater impact on the income level of the counties located on the provincial boundary line, indicating that the "broadband China" policy has reduced the administrative boundary effect and narrowed the gap between the two types of regional economic development. From the perspective of mechanism, the construction of digital infrastructure to improve the income of residents in the administrative border areas is mainly achieved by enhancing residents’ access to financial services and improving the labor productivity of industry and services in the administrative border areas. The research of this paper is of positive significance to explore the path of regional coordinated development by making full use of digital infrastructure construction and emerging digital technology.
ZHANG Ao
,
SUN Jiu-wen
. Digital infrastructure, administrative region boundary effects and regional development gaps[J]. Urban Problems, 2023
, 339(10)
: 77
-84
.
DOI: 10.13239/j.bjsshkxy.cswt.231008
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