| 替换被解释变量 | 替换控制变量 | 删除直辖市样本 | 滞后一期 | 第一阶段 | 第二阶段 |
KZ指数 | SA | SA | SA | FT | SA | |
FT | −0.4920*** | −0.1123*** | −0.1712*** |
|
| −0.1098*** |
(−4.33) | (−6.98) | (−9.52) |
|
| (−5.57) | |
mobile |
|
|
|
| 0.9518*** |
|
|
|
|
| (95.39) |
| |
L.FT |
|
|
| −0.1156*** |
|
|
|
|
| (−6.72) |
|
| |
_cons | −1.3329*** | 2.6864*** | 2.9011*** | 2.6798*** | −1.9521*** | 2.5035*** |
(−2.81) | (41.79) | (42.44) | (40.06) | (−34.62) | (45.18) | |
Control | YES | YES | YES | YES | YES | YES |
Industry | YES | YES | YES | YES | YES | YES |
Year | YES | YES | YES | YES | YES | YES |
N | 22,100 | 22,100 | 17,928 | 18,116 | 22,100 | 22,100 |
Adjusted R2 | 0.1698 | 0.3867 | 0.3884 | 0.3822 | 0.9725 | 0.3862 |