[Retracted] Analysis of Stock Market Opening and Environment Protecting Information with Computational Technologies: Evidence from China

Table 8

Parallel trend test.

Variable	(1)	(2)	(3)	(4)
	Disclose	Disclose	Disclose	Disclose
Treat ∗ Post1	0.240
	(1.38)
Treat ∗ Post2		−0.349
		(−1.51)
Treat ∗ Post3			0.366
			(2.28)
Treat ∗ Post4				0.812
				(3.42)
Control variable	Yes	Yes	Yes	Yes
Industry	Yes	Yes	Yes	Yes
Year	Yes	Yes	Yes	Yes
Constant	2.072	−4.699	−7.282	10.346
	(1.28)	(−2.50)	(−4.98)	(6.62)
Observations	987	1,086	1,276	1,456
Pseudo R^2	0.0262	0.0817	0.116	0.137

, , and .