变量

Opea

常数项

0.9486***

1.0071***

(50.9763)

(52.7811)

Com

−0.0086***

−0.0189***

(−4.7800)

(−3.9241)

Eff

0.0816***

(12.5287)

Com*Eff

0.0290***

(3.3843)

Size

−0.0184***

−0.0330***

(−9.7404)

(−16.2027)

Soe

0.0431***

0.0414***

(21.6382)

(20.8927)

Lev

0.1692***

0.1707***

(35.6550)

(36.1736)

Age

−0.0942***

−0.0799***

(−22.8997)

(−19.2146)

Hold

0.0196***

0.0187***

(3.2856)

(3.1574)

Cap

0.3567***

0.3802***

(19.9280)

(21.3129)

Netrec

0.2872***

0.2944***

(30.5198)

(31.4354)

Client

0.0002***

0.0001***

(4.3261)

(3.3184)

Dep

2.7359***

2.8360***

(42.8259)

(44.4872)

有效观测值

29802

R²

0.3050

0.3131

调整后的R²

0.3041

0.3122

F值

352.99

347.85

F的显著性

0.0000

0.0000

行业

控制

年份

控制