缩写

模型1

模型1-1

模型1-2

Gini

0.141^*

(3.421)

0.152^*

(3.662)

0.146^*

(3.527)

Tec−Indep

0.074

(1.52)

Tec−Indep*Gini

0.077

(1.61)

BoardSize

−0.129^**

(2.242)

BoardSize*Gini

−0.146^**

(2.718)

控制变量

Indep_Ratio

0.036

(1.12)

0.033

(1.09)

0.041

(1.21)

Com_Size

−0.015

(1.01)

−0.018

(1.05)

−0.016

(1.02)

FirstSH_Ratio

−0.109

(2.03)

−0.112

(2.10)

−0.119

(2.18)

Lev

−0.058

(1.69)

−0.064

(1.72)

−0.059

(1.71)

Industry

0.179^*

(3.165)

0.165^*

(3.116)

0.149^*

(3.085)

Env

−0.086

(1.82)

−0.086

(1.82)

−0.086

(1.82)

R²

0.117

0.108

0.123

调整R²

0.107

0.058

0.116

F检验值

2.45

2.176

3.218