变量 | 被解释变量:ETRDt+1 | 被解释变量:DDiffetrt+1 | ||
全样本 | 剔除省会城市的 企业样本 | 剔除在2003年高铁 通车的城市企业样本 | 全样本 | |
(1) | (2) | (3) | (4) | |
HSR_After | 0.087** | 0.123*** | 0.089*** | −0.098*** |
| (0.04) | (0.04) | (0.03) | (0.03) |
HSR | −0.098* | −0.108* | −0.098* | 0.100* |
| (0.05) | (0.06) | (0.05) | (0.06) |
Size | 0.067*** | 0.084*** | 0.070*** | −0.052*** |
| (0.01) | (0.01) | (0.01) | (0.01) |
Independent | 0.127 | 0.476* | 0.067 | −0.203 |
| (0.22) | (0.28) | (0.22) | (0.23) |
Lev | −1.044*** | −1.144*** | −1.049*** | 1.278*** |
| (0.06) | (0.08) | (0.06) | (0.06) |
ROA | 1.871*** | 1.804*** | 1.854*** | −2.296*** |
| (0.17) | (0.21) | (0.17) | (0.18) |
Inventory | 0.591*** | 0.712*** | 0.604*** | −0.668*** |
| (0.10) | (0.13) | (0.10) | (0.10) |
PPE | −0.296*** | −0.316*** | −0.292*** | 0.235*** |
| (0.08) | (0.10) | (0.08) | (0.08) |
Board | −0.113* | 0.093 | −0.107* | 0.026 |
| (0.06) | (0.08) | (0.06) | (0.06) |
soe | 0.086*** | 0.081** | 0.091*** | −0.088*** |
| (0.02) | (0.03) | (0.02) | (0.03) |
INTAN | 0.511** | 1.068*** | 0.584*** | −0.296 |
| (0.20) | (0.27) | (0.20) | (0.21) |
age | 0.006*** | 0.001 | 0.006*** | 0.005** |
| (0.00) | (0.00) | (0.00) | (0.00) |
Airport01 | 0.006 |
|
|
|
| (0.03) |
|
|
|
年份固定效应 | 控制 | 控制 | 控制 | 控制 |
行业固定效应 | 控制 | 控制 | 控制 | 控制 |
省份固定效应 | 控制 | 控制 | 控制 | 控制 |
Constant | 0.279 | −0.588* | 0.221 | 1.408*** |
| (0.26) | (0.35) | (0.26) | (0.27) |
观测数 | 18,746 | 1,761 | 3,675 | 18,746 |
R-squared | 0.107 | 0.4939 | 0.3955 | 0.120 |