| 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 |