(1)

主效应

(2)

替换变量

(3)

滞后变量

(4)

缩短样本期间

(5)

缩短样本期间

Index

0.077^***

0.065^***

0.055^***

(0.009)

(0.008)

(0.008)

L. Index

0.072^***

(0.009)

Digit

0.048^***

(0.007)

Gap

−0.025

−0.068

0.048

−0.267^***

−0.310^***

(0.053)

(0.053)

(0.057)

(0.062)

(0.064)

Urban

2.484^***

2.744^***

2.154^***

3.310^***

3.233^***

(0.218)

(0.221)

(0.241)

(0.222)

(0.247)

Gov

0.318^***

0.400^***

0.280^**

0.482^***

0.694^***

(0.111)

(0.112)

(0.110)

(0.159)

(0.202)

Open

−0.207^***

−0.178^***

−0.115^**

−0.330^***

−0.290^***

(0.043)

(0.045)

(0.049)

(0.039)

(0.039)

Pgdp

0.244^***

0.253^***

0.276^***

0.085^*

0.113^*

(0.038)

(0.039)

(0.038)

(0.049)

(0.058)

Inv

0.056^***

0.062^***

0.071^***

−0.001

−0.002

(0.011)

(0.012)

(0.012)

(0.014)

(0.014)

_cons

4.614^***

4.531^***

4.151^***

7.095^***

6.944^***

(0.409)

(0.420)

(0.423)

(0.538)

(0.620)

N

341.000

341.000

310.000

217.000

186.000

R²

0.967

0.965

0.959

0.975

0.977

固定效应

yes

yes

yes

yes

yes