Abstract
From the perspective of input and output, indicators were
constructed to measure the green technology innovation and digital economy
development capabilities of 244 prefecture-level cities in China from 2010 to
2019. The spatial Durbin model was used to analyze the relationship between the
two, as well as the impact factors of barrier degree, urban geographic location
and population size heterogeneity. Finally, suggestions were put forward based
on the actual urban development. The results show that: (1) The Moran's I of
green technology innovation in 244 cities in China from 2010 to 2019 mainly
clustered in the first and third quadrants, with local spatial clustering. When
the development of digital economy increases by 1%, green technology innovation
will increase by 0.268%, and the related indicators of early investment are at
the forefront of the impact of obstacle degree. (2) From the perspective of
utility decomposition, the impact of digital economy on green technology
innovation is mainly concentrated in the direct effect, the promotion effect of
neighboring areas on local is not significant, and the overall effect has a
time lag; (3) From the perspective of geographical location, its promotion
effect exists only in the eastern region. From the perspective of different
urban population sizes, its promoting effect exists in both megacities and big
cities.
Keywords: The goal of "Gual Carbon", Digital Economy, Green
Technology Innovation, SDM Model