Government-Enterprise Collusion and the Effectiveness of Environmental Regulations: Implications for Public Health

Table 3

IV-2SLS results.

Variables	(1)	(2)	(3)
	WaterI	SootI	SO2I
ER	−0.281 (−5.92)	−0.477 (−6.54)	−0.442 (−7.18)
Control variables	Yes	Yes	Yes
N	4692	4692	4692
R ^2	0.255	0.023	0.380
City fixed	Yes	Yes	Yes
Kleibergen–Paap rk LM	269.455 (0.001)	269.455 (0.001)	269.455 (0.001)
Cragg–Donald Wald F	557.115	557.115	557.115

Note. The numbers in brackets stand for z-statistics; the numbers in the square bracket stand for value; , , and indicate significance at the level of 10%, 5%, and 1%, respectively.