变量

ECO

样本组别

全样本

东部

中部

西部

Green

0.012^***

0.015^*

−0.012^***

−0.005

(4.16)

(1.78)

(−3.77)

(−1.52)

GOV

−0.044^*

−0.089

−0.016

−0.067^***

(−1.75)

(−0.85)

(−0.40)

(−3.94)

UR

0.031

0.050

−0.171^***

0.075^**

(1.11)

(0.88)

(−4.21)

(2.60)

lnPGDP

0.024^***

0.016

0.070^***

0.037^***

(2.63)

(0.68)

(6.09)

(3.33)

IND

0.055^*

0.181

−0.013

0.003

(1.84)

(1.55)

(−0.67)

(0.10)

HUM

1.056^***

1.593^*

0.659^***

1.880^***

(2.88)

(1.66)

(2.91)

(3.48)

常数项

−0.155^*

−0.096

−0.512^***

−0.282^***

(−1.86)

(−0.42)

(−4.55)

(−2.65)

观测值

390

143

104

143

R²

0.797

0.691

0.979

0.943

观测城市数量

30

11

8

11

修正R²

0.769

0.615

0.973

0.929