(5)

(6)

(7)

(8)

F

F

F

F

B

−0.013***

−0.018

(−3.31)

(−0.98)

B²

0.001

(−0.26)

SE

0

0.008*

(−0.03)

(−2.1)

SE²

−0.000**

(−2.23)

loan

0.967***

0.967***

0.547**

0.542**

(−56.98)

(−56.78)

(−2.24)

(−2.24)

size

−0.000**

−0.000**

0

0

(−2.36)

(−2.34)

(−1.68)

(−1.69)

_cons

0.093**

0.099*

0.330**

0.332**

(−2.12)

(−2.05)

(−2.35)

(−2.44)

Time effect

controlled

controlled

controlled

controlled

r2_w

0.963

0.963

0.421

0.44