变数

匹配前/后

实验组

控制组

差异%

t

P值

Size

U

23.275

21.921

106.1

39.33

0

M

23.275

23.269

0.5

0.13

0.894

Leverage

U

0.51214

0.4533

29.1

9.71

0

M

0.51214

0.51194

0.1

0.03

0.979

Sale

U

0.72262

0.66705

11.7

4.05

0

M

0.72262

0.75436

−6.7

−1.6

0.111

Herf3

U

0.21159

0.1704

29.5

11.14

0

M

0.21159

0.21081

0.6

0.13

0.893

Tradable share

U

0.17662

0.23967

−23.7

−7.92

0

M

0.17662

0.17022

2.4

0.67

0.502

Largest holder rate

U

40.154

36.186

24

8.72

0

M

40.154

39.941

1.3

0.32

0.747