Abstract
Digital economy is a crucial indicator of national or regional competitiveness and modernization. Evaluation of the digital economy development is an important approach for comprehensively understanding China's digital economy landscape. Based on the panel data of 110 cities in the Yangtze River Economic Belt (YREB) from 2011 to 2020, this paper evaluated the development of the digital economy in YREB. The evaluation process focused on digital infrastructure, digital industrialization, digital innovation environment, and digital financial inclusion, employing a new mutual-information-based weighting method to quantify indicators’ centrality. We further adopted the Dagum's Gini coefficient decomposition method, kernel density estimation and Moran's I to reveal the regional differences and spatio-temporal evolution of the digital economy development. The results showed that a westward decreasing trend in the YREB's digital economy, with optimal development observed in the lower reaches of the Yangtze River. Regional differences exhibited a significant downward trend. It is noteworthy that the Gini coefficient showed a slight upward trend after 2017. The digital economy development dispersion across the YREB was apparent. The digital economy development showed a notable positive spatial correlation. Moreover, the distribution of digital economy development among the cities was mainly characterized by a low-low agglomeration pattern.
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