Variable

Unmatched

Mean

% bias

% reduct

t-test

V(T)/V(C)

Matched

Treated

Control

bias

t

P > t

topsh

U

35.787

35.256

3.5

0.99

0.324

1.09

M

35.787

35.717

0.5

86.7

0.10

0.923

1.14

size

U

22.328

22.354

−2.0

−0.42

0.675

0.97

M

22.328

22.31

1.3

50.0

0.36

0.717

0.90

roa

U

33.491

10.604

8.1

2.68

0.007

4.82*

M

33.491

21.909

4.1

49.4

0.74

0.461

2.01*

gp

U

2.7574

2.4734

12.7

3.60

0.000

1.16*

M

2.7574

2.7105

2.1

83.5

0.41

0.680

1.02

lev

U

0.42379

0.41558

4.2

1.12

0.263

0.90

M

0.42379

0.42598

−1.1

73.3

−0.23

0.817

0.99

bm

U

0.69927

0.81678

−13.9

−3.69

0.000

0.82*

M

0.69927

0.68386

1.8

86.9

0.42

0.677

1.30*

age

U

9.5998

10.876

−20.5

−5.40

0.000

0.81*

M

9.5998

9.3946

3.3

83.9

0.70

0.485

0.95