Evaluating the Effect of China’s Carbon Emission Trading Policy on Energy Efficiency of the Construction Industry Based on a Difference-in-Differences Method

Table 6

The estimation results of PSM-DID.

	(1) lnee	(2) lnee
treatipostt	0.957^∗∗	0.371^∗∗
	(2.95)	(2.58)
Productivity		0.005
		(0.42)
Machinery		−0.061
		(−1.37)
Urbanratio		5.814^∗∗
		(2.36)
Lnesratio		0.691^∗∗∗
		(3.45)
Rdratio		35.738
		(1.60)
_Cons	3.212^∗∗∗	0.889
	(132.68)	(0.57)
Province FE	Yes	Yes
Year FE	Yes	Yes
Adj. R^2	0.843	0.945
N	45	45

Standard errors are clustered at the provincial level. t statistics in parentheses.^∗p < 0.10, ^∗∗p < 0.05, ^∗∗∗p < 0.01.