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Diagram 1. Research model
Source: Author
Table 1. Definition of variables
Code Variable description Data source Source
Dependent variable
SD: Sustainable development
index
Average disposable income per General Statistics
capita of urban residents Office (GSO) Qiguang An (2024)
Average disposable income per General Statistics
capita of rural residents Office (GSO) Qiguang An (2024)
General Statistics
GDP per capita ratio Qiguang An (2024)
Office (GSO)
Centralized wastewater General Statistics Qiguang An (2024)
treatment rate Office (GSO)
Non-hazardous domestic waste General Statistics
SD Qiguang An (2024)
(measur treatment rate Office (GSO)
ed by General Statistics Chen, H.; Ma, Z.;
PCA) Forest coverage rate Office (GSO) Xiao, H.; Li, J.; Chen,
W. (2023)
Average daily treated solid General Statistics An Q, Wang R, Wang
waste Office (GSO) Y và Pavel K (2024)
General Statistics
Human Development Index The authors
Office (GSO)
Percentage of households with General Statistics
access to hygienic water Office (GSO) The authors
Independent variable
DE: Digital economy development
DE: Number of telephone General Statistics Zhao, T., Zhang, Z.,
(measur subscribers Office (GSO) and Liang, S. (2020),
ed by Number of mobile subscribers An Q, Wang R, Wang
PCA) within total telephone General Statistics Y và Pavel K (2024);
Office (GSO)
subscribers Zhang J, Zhao W,
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