Research Article
A Study of Network Negative News Based on Behavioral Finance Analysis of Abnormal Fluctuation of Stock Price
Table 1
Selection and definition of variables.
| | Variable code | Definition | Quantitative method | Unit |
| Dependent variable | CAR | Cumulative average return | | % | Independent variable | EPS | Earnings per share | Net profit/general capital | Yuan/share | ROE | Return on equity | Net profit/net assets | % | H1 | Shareholding ratio of the largest shareholder | Stock ownership/total shares outstanding | % | HHI5 | Herfindahl–Hirschman index | Sum of squares | % | REP | Corporate reputation | The number of company violations is taken from the natural logarithm | Times | INV | Institutional investor shareholding ratio | Institutional investor holdings/total share capital | % |
|
|