(1)

(2)

(3)

Score

Score

Score

EPU

−0.096***

−0.182***

−0.204***

(0.013)

(0.017)

(0.018)

size

0.260***

0.465***

(0.074)

(0.103)

CAP

0.106***

0.112***

(0.015)

(0.016)

Lev

−0.032***

−0.033***

(0.007)

(0.006)

gs

3.142***

2.992***

(0.545)

(0.559)

CPI

0.087***

(0.023)

m2

0.013

(0.010)

常数项

0.317***

−10.075***

−25.021***

(0.054)

(2.463)

(5.069)

N

256

256

256

R-squared

0.125

0.513

0.543