模型1

ROA

模型2

ROA

模型3

ROA

SIZE

0.0018^*

0.0083^***

−0.0065^***

(1.7332)

(7.8174)

(−5.8856)

BS

0.0182^***

0.0181^***

0.0201^***

(3.3355)

(3.4640)

(3.8396)

GROW

0.0734^***

0.0722^***

0.0749^***

(19.3398)

(19.8512)

(20.5652)

AGE

−0.0008^***

−0.0006^***

−0.0008^***

(−4.4215)

(−3.7168)

(−4.8740)

CR

0.0004^***

0.0004^***

0.0005^***

(5.3949)

(4.9341)

(7.0190)

SLK

0.0119^***

(18.4418)

SALARY

0.0274^***

(18.1585)

N

3732

3732

3732

r2_a

0.1194

0.1929

0.1908