Table 1 The descriptive statistics
Variables | N | Max | Mean | Min | SD | Skewness | Kurtosis |
|---|---|---|---|---|---|---|---|
r | 20,956 | 1.820 | − 0.285 | − 30.50 | 0.901 | − 13.29 | 314.1 |
E(c) | 20,956 | 8.202 | 1.678 | − 7.659 | 2.891 | − 0.405 | 2.792 |
\(\beta_{1}\) | 20,894 | 46.55 | 2.080 | − 31.41 | 3.781 | 4.433 | 37.13 |
\(\beta_{2}\) | 20,884 | 4.659 | 0.955 | − 2.722 | 0.849 | 0.293 | 3.922 |
\(\beta_{3}\) | 20,894 | 0.882 | − 0.157 | − 9.704 | 0.454 | − 7.845 | 91.08 |
\(\beta_{4}\) | 20,884 | 29.28 | − 9.280 | − 52.75 | 9.196 | − 0.178 | 3.885 |
\(\beta_{5}\) | 20,884 | 55.10 | 10.39 | − 29.29 | 9.788 | 0.241 | 3.842 |