Variables | 全样本 | ***组 | ***组 |
(1) | (2) | (3) | |
Coi,t | -0.065*** | -0.022 | -0.088*** |
Sizei,t | 0.905*** | 0.936*** | 0.872*** |
Agei,t | -0.150*** | -0.126** | -0.178*** |
Roai,t | 2.730*** | 2.624*** | 2.615*** |
Levi,t | -0.333*** | -0.346*** | -0.256** |
Cfi,t | 1.276*** | 1.252*** | 1.412*** |
Marketi,t | 1.148*** | 1.363*** | 0.858*** |
Tecstaffi,t | 0.011*** | 0.011*** | 0.011*** |
Constant | -1.907*** | -2.662*** | -1.115** |
行业 | Yes | Yes | Yes |
年度 | Yes | Yes | Yes |
N | 8,350 | 4,093 | 4,257 |
R2 | 0.585 | 0.619 | 0.558 |


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