Independent Variable

Dependent Variable

ckzzl

ckzzl

ckzzl

ckzzl

ckzzl

ckzzl

yebsyl

Constant

0.07

(3.06)

0.09

(4.08)

0.11

(2.39)

0.11

(2.39)

0.07

(0.99)

0.09

(1.71)

−0.04

(58.6)

yebsyl

−1.77^***

(−4.09)

−1.71^***

(3.96)

−2.26^***

(3.70)

−2.26^***

(3.70)

−2.06^***

(−3.15)

−2.15^***

（3.45）

sxfl

13.64

(1.89)

6.58

(1.76)

8.47

(0.91)

4.74

(1.22)

jgzzl

0.17^**

(1.95)

0.23^*

(1.65)

0.21^**

(2.06)

0.06^**

(1.99)

CEI

0.34^**

(2.66)

0.34^**

(2.65)

0.35^**

(2.7)

0.34^**

(2.69)

Szzzzl

−0.21

(−0.24)

−0.21

(−0.24)

−0.39

(−0.44)

0.32

(−0.36)

−0.54^***

(−3.23)

CPI

−0.18

(−0.21)

−0.18

(−0.2)

0.47

(0.31)

0.15

(0.16)

Effect Model

Fixed Effect

Random Effect

Fixed Effect

Random Effect

Fixed Effect

Random Effect

Fixed Effect

R2

0.82

0.73

0.86

0.78

0.77

0.79

0.87