Research Article
Effect of Ap-Index of Geomagnetic Activity on S&P 500 Stock Market Return
Table 7
Regression Results for Equ. (
5), (
6) and (
8).
| | DGD | SMI | SMI | | (5) | (6) | (8) | | Coefficient | p-value | Coefficient | p-value | Coefficient | p-value |
| Intercept | 0.1476 | 0.7020 | -0.0023 | 0.5216 | 0.0035 | 0.3939 | SAD | -0.3543 | 0.5530 | 0.0056 | 0.3263 | | | e | | | -0.0012 | 0.0523 | | | DGD | | | | | -0.0007 | 0.1923 | ILLIQ | | | | | -0.0001 | 0.3811 | DGDILLIQ | | | | | -0.0001 | 0.0009 |
| Adj. R-squared | -0.0027 | 0.0115 | 0.0585 | Obs. | 240 | 240 | 240 |
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