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 |