China’s New Environmental Protection Law and Green Innovation: Evidence from Prefecture-Level Cities

Table 6

Further analyses.

	(1)	(2)
	Ginnovation	Ginnovation
Treat × Post × HHI	0.0125
	(0.0063)
Treat × HHI	0.0087
	(0.0042)
Post × HHI	0.0004
	(0.0029)
Treat × Post × IPP	0.0019
		(0.0010)
Treat × IPP		0.0007
		(0.0007)
Post × IPP		0.0005
		(0.0007)
IPP		−0.0002
		(0.0006)
HHI	−0.0046
	(0.0035)
Treat × Post	0.0029	−0.0105
	(0.0020)	(0.0068)
AGDP	−0.0041	−0.0044
	(0.0035)	(0.0035)
FDI	0.0319	0.0356
	(0.0421)	(0.0435)
Struct	0.0002	0.0001
	(0.0002)	(0.0002)
Science	0.0020	0.0011
	(0.0010)	(0.0010)
Industry	−0.0040	−0.0033
	(0.0022)	(0.0022)
POP	−0.0029	−0.0057
	(0.0068)	(0.0067)
PM25	0.0056	0.0071
	(0.0030)	(0.0031)
Constant	0.0670	0.0864
	(0.0575)	(0.0574)
City FE	Yes	Yes
Year FE	Yes	Yes
N	1795	1775
R^2	0.0390	0.0429

Robust standard errors are presented in parentheses. , , and indicate statistical significance at the 10%, 5%, and 1% levels, respectively.