Descriptive statistics of volatility and volatility indices
| Obs | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 |
| Mean | 0.07 | 0.14 | 0.11 | 0.13 | 0.07 | 0.10 | 0.11 | 0.00 | −0.04 |
| Maximum | 0.40 | 0.65 | 1.23 | 1.72 | 0.46 | 1.29 | 1.63 | 1.40 | 3.38 |
| Minimum | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | −2.05 | −4.29 |
| Std. Deviation | 0.04 | 0.07 | 0.10 | 0.15 | 0.04 | 0.09 | 0.10 | 0.24 | 0.51 |
| Skewness | 2.23 | 1.40 | 4.06 | 4.21 | 2.90 | 7.24 | 5.02 | −0.87 | −1.90 |
| Kurtosis | 8.41 | 4.88 | 25.16 | 27.73 | 13.10 | 71.08 | 53.75 | 10.66 | 11.46 |
| JB | 5,989*** | 2092.1*** | 46,233*** | 55,604*** | 13,572*** | 348,166*** | 197,812*** | 7716.5*** | 9654.6*** |
| BDS | 32.71*** | 10.45*** | 20.65*** | 37.38*** | 18.30*** | 11.97*** | 27.71*** | 16.63*** | 29.99*** |
| ADF | −5.5 *** | −6.4*** | −5.9*** | −6.4*** | −7.7*** | −8.7*** | −8.1*** | −6.9*** | −7.1*** |
| PP | −1,087*** | −1,562*** | −1,523*** | −625*** | −1,668*** | −1,158*** | −1,408*** | −1,151*** | −1,248*** |
| Obs | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 | 1,598 |
| Mean | 0.07 | 0.14 | 0.11 | 0.13 | 0.07 | 0.10 | 0.11 | 0.00 | −0.04 |
| Maximum | 0.40 | 0.65 | 1.23 | 1.72 | 0.46 | 1.29 | 1.63 | 1.40 | 3.38 |
| Minimum | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | −2.05 | −4.29 |
| Std. Deviation | 0.04 | 0.07 | 0.10 | 0.15 | 0.04 | 0.09 | 0.10 | 0.24 | 0.51 |
| Skewness | 2.23 | 1.40 | 4.06 | 4.21 | 2.90 | 7.24 | 5.02 | −0.87 | −1.90 |
| Kurtosis | 8.41 | 4.88 | 25.16 | 27.73 | 13.10 | 71.08 | 53.75 | 10.66 | 11.46 |
| JB | 5,989*** | 2092.1*** | 46,233*** | 55,604*** | 13,572*** | 348,166*** | 197,812*** | 7716.5*** | 9654.6*** |
| BDS | 32.71*** | 10.45*** | 20.65*** | 37.38*** | 18.30*** | 11.97*** | 27.71*** | 16.63*** | 29.99*** |
| ADF | −5.5 *** | −6.4*** | −5.9*** | −6.4*** | −7.7*** | −8.7*** | −8.1*** | −6.9*** | −7.1*** |
| PP | −1,087*** | −1,562*** | −1,523*** | −625*** | −1,668*** | −1,158*** | −1,408*** | −1,151*** | −1,248*** |
Note(s): ***, ** and * implies null is rejected at 1%, 5% and 10% level of significance
Source(s): Authors’ estimations
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