疫情爆发前

估计值

SE

t

P

μ

1.654E−03

7.196E−04

2.299

0.0215

ω

6.607E−05

1.188E−05

5.561

0.0000

α

1.852E−01

2.502E−02

7.403

0.0000

β

7.898E−01

2.370E−02

33.323

0.0000

疫情爆发后

μ

3.92E−03

1.53E−03

2.562

0.0104

ω

7.41E−05

2.50E−05

2.968

0.0030

α

7.20E−02

2.19E−02

3.288

0.0010

β

8.88E−01

2.59E−02

34.239

0.0000