Fig 1.
A schematic diagram of the micro-mechanism of the DE in promoting the HQDT.
Fig 2.
A schematic diagram of the middle-view mechanism of the DE in promoting the HQDT.
Fig 3.
A schematic diagram of the macro mechanism of the DE in promoting the HQDT.
Table 1.
Evaluation index system of DE development level.
Table 2.
HQDT level evaluation index system.
Table 3.
Average scores for each dimension of the DE in 31 provinces, 2011–2020.
Table 4.
Results of measuring the level of DE and HQDT in 31 provinces.
Fig 4.
Scatter plot and fitted curve of DE and HQDT.
Table 5.
Names and measures of each variable.
Table 6.
Results of descriptive statistics for each variable.
Table 7.
Baseline regression results of the DE on HQDT.
Table 8.
Spatial correlation test between DE and HQDT.
Table 9.
Applicability tests of spatial measurement models.
Table 10.
Regression results of the spatial effect of DE on the HQDT.
Table 11.
Effect decomposition results of the SDM.
Table 12.
Results of endogeneity test and robustness test.
Table 13.
Results of heterogeneity analyses.