变量名称 | 绿色发明申请 | |||
(1) | (2) | (3) | (4) | |
控制型文化 | 0.107*** |
|
|
|
| (3.09) |
|
|
|
竞争型文化 |
| −0.008 |
|
|
|
| (−1.26) |
|
|
协作型文化 |
|
| −0.017** |
|
|
|
| (−2.34) |
|
创造型文化 |
|
|
| 0.069*** |
|
|
|
| (4.11) |
企业规模 | 0.341*** | 0.342*** | 0.342*** | 0.342*** |
| (35.61) | (35.62) | (35.64) | (35.65) |
企业年龄 | −0.029*** | −0.026*** | −0.027*** | −0.030*** |
| (−3.62) | (−3.29) | (−3.45) | (−3.75) |
ROA | −0.642*** | −0.638*** | −0.641*** | −0.642*** |
| (−7.94) | (−7.90) | (−7.93) | (−7.94) |
杠杆率 | 0.493*** | 0.492*** | 0.493*** | 0.493*** |
| (18.56) | (18.53) | (18.55) | (18.56) |
四大审计 | 0.232*** | 0.231*** | 0.232*** | 0.232*** |
| (7.06) | (7.02) | (7.05) | (7.08) |
分析师 | 0.047*** | 0.047*** | 0.047*** | 0.048*** |
| (7.78) | (7.77) | (7.77) | (7.81) |
企业产权 | 0.123*** | 0.122*** | 0.122*** | 0.123*** |
| (10.22) | (10.14) | (10.18) | (10.24) |
常量 | −3.423*** | −3.418*** | −3.412*** | −3.425*** |
| (−42.37) | (−42.20) | (−42.17) | (−42.39) |
样本量 | 25,506 | 25,506 | 25,506 | 25,506 |
调整的R2 | 0.235 | 0.234 | 0.235 | 0.235 |
年份效应 | YES | YES | YES | YES |
行业效应 | YES | YES | YES | YES |