Table 7 Dickey–Fuller test for unit root
From: Cloud economy and its relationship with China’s economy—a capital market-based approach
Test statistic | |||||
|---|---|---|---|---|---|
Level | Percent (%) | 1% Critical value | 5% Critical value | 10% Critical value | |
SSE: | |||||
Drift | − 1.884 | − 19.630 | − 2.335 | − 1.648 | − 1.283 |
Trend | − 2.133 | − 19.607 | − 3.982 | − 3.422 | − 3.130 |
No-constant | 0.236 | − 19.612 | − 2.580 | − 1.950 | − 1.620 |
CCEI: | |||||
Drift | 1.056 | − 19.654 | − 2.335 | − 1.648 | − 1.283 |
Trend | − 0.130 | − 19.688 | − 3.982 | − 3.422 | − 3.130 |
No-constant | 1.969 | − 19.512 | − 2.580 | − 1.950 | − 1.620 |
GEM: | |||||
Drift | − 1.436 | − 19.543 | − 2.335 | − 1.648 | − 1.283 |
Trend | − 1.737 | − 19.533 | − 3.982 | − 3.422 | − 3.130 |
No-constant | 0.600 | − 19.393 | − 2.580 | − 1.950 | − 1.620 |