变量

模型1

模型2

模型3

模型4

GNI

0.001^**

0.001^**

0.001^**

0.001^**

(3.25)

(3.18)

(3.18)

(2.72)

TIR

2.241

2.410

2.367

(1.14)

(1.46)

(1.45)

DE

12.797

(0.33)

PE

0.001^***

0.001^***

0.000^***

0.001^***

(3.43)

(4.43)

(4.03)

(5.37)

FA

−0.022

−0.028

(−0.57)

(−0.59)

IPR

0.725^*

0.699^**

0.682^**

0.851^***

(2.07)

(2.33)

(2.37)

(3.41)

RIG

−84.575^***

−83.861^***

−84.055^***

−87.789^***

(−3.74)

(−3.78)

(−3.83)

(−4.07)

GI

14.731^***

15.039^***

15.068^***

15.293^***

(5.05)

(5.63)

(5.75)

(6.49)

Constant

−12.497

−5.045

−15.531

68.811

(−0.11)

(−0.04)

(−0.13)

(0.82)

Observations

63

63

63

63

Number of ID

9

9

9

9

Hausman test

−

−

−

0.0007

R-squared

0.95

0.95

0.95

0.94