A Study of Network Negative News Based on Behavioral Finance Analysis of Abnormal Fluctuation of Stock Price

Table 5

Regression analysis of cumulative abnormal return.

	Regression coefficient	T value	Significance
Constant	0.0348	1.2001	0.2315
EPS	−0.0387	−2.1565	0.0322
ROE	−0.1506	−2.0002	0.0468
H1	−0.2105	−1.6737	0.0957
HHI5	0.4766	3.4833	0.0006
LnREP	−0.0109	−1.3683	0.1727
INV	−0.0867	−2.0190	0.0447
F	15.832
Adj-	0.291
VIF	1.356

, , and indicate significance at 0.01, 0.05, and 0.1 levels.