Table 8 IV-2SLS test results of the effect of environmental regulation on enterprise investment inefficiency.
(1) | (2) | (3) | (4) | |
---|---|---|---|---|
First stage | Second stage | First stage | Second stage | |
Variables | Fee | Invest | Subsidy | Invest |
L.Fee | 0.632*** | |||
(0.021) | ||||
Fee | −0.043*** | |||
(0.011) | ||||
L.Subsidy | 0.560*** | |||
(0.020) | ||||
Subsidy | −0.069*** | |||
(0.025) | ||||
Constant | 4.025*** | −1.456*** | 4.609*** | −2.337*** |
(1.417) | (0.481) | (0.643) | (0.499) | |
Control variables | YES | YES | YES | YES |
N | 1355 | 1355 | 1694 | 1694 |
R-squared | 0.426 | 0.067 | 0.436 | 0.028 |
IV F-stat | 943.900 | 816.900 | ||
Durbin p-value | 0.015 | 0.020 |