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

Table 6

The moderating effect of promotion incentives under different periods.

Variables	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
	3-year tenure criterion			5-year tenure criterion			Without considering tenure
	WaterI	SootI	SO2I	WaterI	SootI	SO2I	WaterI	SootI	SO2I
2003–2012	−0.002 (−0.16)	0.005 (0.22)	−0.002 (−0.16)	−0.011 (−1.50)	0.029 (2.40)	0.009 (1.12)	−0.003 (−0.48)	0.021 (1.79)	0.012 (1.60)
2013–2019	−0.031 (−1.56)	0.041 (1.32)	0.071 (2.09)	0.001 (0.14)	0.048 (3.02)	0.055 (3.11)	0.007 (0.79)	0.039 (2.67)	0.048 (2.98)
Control variables	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
City fixed	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes