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. 2023 Jun 28;9(7):e17571. doi: 10.1016/j.heliyon.2023.e17571

Table 3.

Benchmark regression results.

VARIABLES (1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
gap gap gap gap gap gap gap gap
CRexpress −0.0424*** −0.0390*** −0.0391*** −0.0394*** −0.0399*** −0.0398*** −0.0386*** −0.0511***
(−3.69) (−3.48) (−3.51) (−3.55) (−3.63) (−3.63) (−3.58) (−4.68)
structure_2 −0.2400*** −0.2454*** −0.2469*** −0.2143*** −0.2178*** −0.2007*** −0.5345***
(−3.22) (−3.50) (−3.51) (−2.99) (−3.02) (−2.90) (−5.79)
urbanization 0.0088 0.0119 0.0120 0.0106 0.0285 −0.0537
(0.20) (0.27) (0.28) (0.24) (0.61) (−0.92)
finance −0.0478 −0.0309 −0.0295 −0.0251 0.0017
(−1.15) (−0.81) (−0.77) (−0.75) (0.07)
FDI −0.0135*** −0.0136*** −0.0133*** −0.0003
(−3.19) (−3.20) (−3.15) (−0.11)
education 0.0053 0.0044 −0.0193**
(0.59) (0.50) (−2.15)
per_GDP 0.0009 −0.0060**
(0.23) (−2.23)
technology −0.0200*** −0.0204**
(−2.92) (−2.13)
Observations 3265 3265 3265 3265 3265 3265 3265 960
Adjusted R-squared 0.854 0.857 0.857 0.857 0.859 0.859 0.861 0.913
City FE YES YES YES YES YES YES YES YES
Year FE YES YES YES YES YES YES YES YES

Robust t-statistics in parentheses ***p < 0.01, **p < 0.05, *p < 0.1.