(1)

(2)

(3)

变量

Rpt

Rpt

Rpt

常数项

0.185***

0.654***

0.574***

(111.121)

(12.734)

(10.526)

Academic

−0.035***

−0.010***

−0.015***

(−8.698)

(−2.610)

(−3.709)

Size

−0.017***

−0.016***

(−11.829)

(−10.342)

Lev

0.345***

0.376***

(39.708)

(41.473)

ROA

−0.138***

−0.090***

(−5.364)

(−3.476)

Cashflow

−0.043**

−0.085***

(−2.065)

(−3.967)

Board

−0.063***

−0.037***

(−7.297)

(−4.235)

Indep

−0.126***

−0.098***

(−4.092)

(−3.237)

Dual

0.004

0.003

(1.046)

(0.742)

SOE

0.021***

0.027***

(6.193)

(7.693)

FirmAge

0.023***

0.016***

(6.115)

(3.738)

Gender

0.007

0.003

(1.197)

(0.455)

Age

−0.037***

−0.049***

(−3.378)

(−4.475)

Edca

−0.000

0.002

(−0.247)

(1.238)

Ind/Year

未控制

未控制

控制

F

75.66

209.4

75.84

Adj-R2

0.004

0.135

0.163

N

17,298

17,298

17,298