变量

Unmatched

Or Matched

均值

标准偏差(%)

标准偏差减少幅度

统计检验

Treated

Control

T-value

P-value

Size

U

24.319

23.237

87.3

19.02

0.000

M

24.179

24.22

−3.3

96.2

−0.71

0.480

Fassets

U

0.2220

0.1992

11.7

2.55

0.011

M

0.2238

0.2321

−4.3

63.3

−0.83

0.405

Cash

U

0.1119

0.1196

−10.3

−2.25

0.025

M

0.1120

0.1103

2.2

78.7

0.50

0.619

Ret

U

0.1239

0.1268

−0.6

−0.12

0.902

M

0.1123

0.1289

−3.2

−463.8

−0.75

0.455

Current

U

1.2830

1.6094

−37.2

−8.10

0.000

M

1.2953

1.2452

5.7

84.6

1.60

0.111

Indep

U

0.3842

0.3753

14.8

3.23

0.001

M

0.3816

0.3854

−6.3

57.4

−1.26

0.207