Table 4.
Blinder–Oaxaca decomposition of differences in hourly wage rates between males and femalesa
| Overall | Coeff. | Robust SE | 95% CI | Coeff. | Robust SE | 95% CI | ||
|---|---|---|---|---|---|---|---|---|
| group_1 (males) |
25.948 |
0.192 |
25.574 |
26.328 |
|
|
|
|
| group_2 (females) |
21.274 |
0.093 |
21.092 |
21.456 |
|
|
|
|
| difference |
1.220 |
0.010 |
1.199 |
1.240 |
|
|
|
|
| explained |
1.046 |
0.006 |
1.034 |
1.058 |
|
|
|
|
| unexplained |
1.166 |
0.008 |
1.150 |
1.183 |
|
|
|
|
| |
Explained |
Unexplained |
||||||
| Separated/div/wid |
1.001 |
0.001 |
1.000 |
1.003 |
0.995 |
0.002 |
0.991 |
1.000 |
| Never married |
1.000 |
0.000 |
0.999 |
1.001 |
0.992 |
0.003 |
0.987 |
0.998 |
| Year 11/lower |
1.002 |
0.002 |
0.998 |
1.007 |
0.995 |
0.004 |
0.987 |
1.003 |
| Year 12 |
1.002 |
0.001 |
1.000 |
1.004 |
0.998 |
0.002 |
0.993 |
1.002 |
| Tertiary |
0.999 |
0.001 |
0.996 |
1.002 |
0.997 |
0.004 |
0.988 |
1.005 |
| Postgraduate |
1.003 |
0.001 |
1.001 |
1.005 |
1.026 |
0.005 |
1.016 |
1.036 |
| Manager |
1.002 |
0.001 |
1.001 |
1.003 |
0.996 |
0.003 |
0.991 |
1.001 |
| Clerical/service |
1.018 |
0.002 |
1.015 |
1.021 |
0.993 |
0.004 |
0.986 |
1.000 |
| Trade/labour |
0.962 |
0.002 |
0.957 |
0.967 |
1.005 |
0.002 |
1.002 |
1.008 |
| Number of children |
1.018 |
0.002 |
1.014 |
1.021 |
1.001 |
0.004 |
0.994 |
1.008 |
| Local |
1.024 |
0.002 |
1.020 |
1.028 |
0.980 |
0.003 |
0.973 |
0.986 |
| Private |
1.000 |
0.000 |
1.000 |
1.001 |
1.003 |
0.001 |
1.000 |
1.005 |
| Number supervised |
1.002 |
0.001 |
1.001 |
1.003 |
1.001 |
0.003 |
0.995 |
1.007 |
| PE |
1.005 |
0.001 |
1.002 |
1.008 |
1.355 |
0.079 |
1.208 |
1.520 |
| PE2 |
0.997 |
0.001 |
0.994 |
1.000 |
0.862 |
0.029 |
0.807 |
0.921 |
| Unpaid overtime |
1.011 |
0.002 |
1.008 |
1.014 |
1.004 |
0.005 |
0.995 |
1.014 |
| _cons | 1.014 | 0.029 | 0.958 | 1.072 | ||||
aResults retransformed to the original scale. For ease of interpretation, gender codes are reversed: male = 0; female = 1. CI, confidence interval; Coeff. coefficient; PE, experience proxy; SE, standard error; Separated/div/wid, separated/divorced/widowed.
Source: Work Outcomes Research Cost-benefit Survey 2005/06.