Research on the Time-Frequency Spillover Effect of High-Frequency Stock Price and Economic Policy Uncertainty

Table 2

Descriptive statistics and unit root test of SSEC and HSI.

	SSEC	HSI
Mean	−9.191876	−6.556836
Median	−9.281615	−6.687046
Maximum	−6.657218	−3.615086
Minimum	−10.97081	−7.724878
Std. dev.	0.913208	0.72501
Skewness	0.433321	0.941521
Kurtosis	2.629457	3.868389
Jarque–Bera	9.401923	45.50775
ADF	−5.547368	−4.352010

Note: indicates significance at 5% level and indicates significance at 1% level.