Table 1.

Descriptive statistics.

Variable	Description	Unit	SD	Mean	Median
ImTrade	Trade volume	RMB	1936094.20	1582028.76	515313.93
ExTrade			5047574.40	2804270.20	1704228.06
ImPMI	PMI	%	4.63	6.80	50.95
ExPMI			6.80	47.39	49.85
ImCase	Confirmed cases		20327.66	9189.30	2127.50
ExCase			230765.40	63698.05	7880.50
ImStri	Stringency index		25.16	48.72	60.85
ExStri			27.96	47.08	49.51