| 被解释变量 | 绿色专利授权总量 | 绿色发明专利授权量 | |
VARIABLES | 变量名称 | (1) | (2) | (3) |
CSR | 企业社会责任表现 | 0.772*** | 0.770*** | 0.836*** |
|
| (5.54) | (5.64) | (5.01) |
LnNstaff | 员工数目 | 0.282 | 0.240 | 0.366 |
|
| (0.32) | (0.26) | (0.42) |
Debts | 资产负债率 | −8.849 | −8.510 | 5.483 |
|
| (−1.17) | (−1.09) | (0.67) |
Tonbinq | 托宾Q值 | −2.804** | −3.026*** | −2.365** |
|
| (−2.49) | (−2.68) | (−2.15) |
Sale | 主营业务收入 |
| 1.516 | 2.379 |
|
|
| (0.86) | (1.27) |
Liquidity | 资产流动率 |
| 31.258** | 43.474*** |
|
|
| (2.38) | (2.85) |
Soe | 企业产权性质 |
| 6.081** | 5.796** |
|
|
| (2.03) | (1.98) |
Industry FE | 行业效应 | yes | yes | yes |
Year FE | 年份效应 | yes | yes | yes |
Constant | 常数项 | −50.626*** | −74.354*** | −93.185*** |
|
| (−3.21) | (−3.35) | (−3.53) |
Observations | 样本量 | 1,760 | 1,760 | 1,760 |
F | F统计值 | 2.918 | 3.137 | 2.276 |