Appendix Table A1.
Summary Statistics for the Estimation Samples
| Variable | Germany, 1960–1964 |
Germany, 1965–1969 |
Britain, 1965–1969 |
United States, 1955–1959 |
United States, 1960–1964 |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Full Sample | Mothers Only | Full Sample | Mothers Only | Full Sample | Mothers Only | Full Sample | Mothers Only | Full Sample | Mothers Only | |
| Log Real Wage (national (currency) | 3.03 (0.46) | 3.02 (0.47) | 2.99 (0.46) | 2.95 (0.47) | 1.85 (0.53) | 1.76 (0.58) | 2.22 (0.57) | 2.19 (0.58) | 2.12 (0.55) | 2.11 (0.56) |
| Number of Children | 0.88 (1.03) | 1.73 (0.78) | 0.42 (0.79) | 1.56 (0.73) | 0.76 (1.12) | 1.94 (0.96) | 0.88 (1.17) | 1.99 (0.94) | 0.69 (1.05) | 1.81 (0.94) |
| Duration of Work Interruption (years) | 1.56 (2.66) | 3.03 (3.07) | 0.69 (1.68) | 2.49 (2.45) | 0.68 (1.54) | 1.68 (2.08) | 0.35 (0.71) | 0.80 (0.89) | 0.33 (0.70) | 0.86 (0.91) |
| Age | 31.44 (5.71) | 34.13 (4.52) | 27.60 (4.64) | 30.75 (3.56) | 29.50 (3.52) | 30.91 (3.03) | 27.93 (4.86) | 29.93 (4.64) | 24.80 (4.80) | 27.19 (4.26) |
| Labor Force Experience (years) | 9.92 (5.50) | 11.89 (4.98) | 6.87 (4.18) | 9.05 (3.97) | 10.20 (4.35) | 10.59 (4.06) | 6.15 (4.38) | 7.22 (4.54) | 5.37 (3.98) | 6.46 (4.07) |
| Years of Education | 11.72 (2.38) | 11.32 (2.24) | 11.61 (2.30) | 11.08 (2.10) | 13.31 (2.74) | 12.68 (2.73) | 13.16 (2.22) | 12.68 (2.04) | 12.67 (2.13) | 12.41 (1.96) |
| Number of Job Changes | 0.95 (1.21) | 1.08 (1.27) | 1.21 (1.20) | 1.29 (1.30) | 1.61 (1.61) | 1.92 (1.71) | 3.07 (2.29) | 3.49 (2.47) | 3.99 (2.45) | 4.64 (2.55) |
| Number of Job Changes at Reentry | 0.06 (0.25) | 0.11 (0.33) | 0.05 (0.23) | 0.18 (0.40) | 0.15 (0.40) | 0.39 (0.57) | 0.17 (0.45) | 0.38 (0.61) | 0.23 (0.53) | 0.60 (0.72) |
| Tenure (years) | 5.82 (5.08) | 6.00 (5.45) | 4.24 (3.85) | 5.01 (4.53) | 2.91 (3.19) | 3.03 (3.40) | 2.75 (3.18) | 3.13 (3.49) | 2.15 (2.65) | 2.59 (3.09) |
| Part-time Job | 0.32 (0.47) | 0.54 (0.50) | 0.21 (0.41) | 0.60 (0.49) | 0.29 (0.45) | 0.60 (0.49) | 0.20 (0.40) | 0.22 (0.41) | 0.26 (0.44) | 0.21 (0.41) |
| SIOPS Occupational Prestige | 40.98(11.99) | 38.99(12.04) | 41.28(11.38) | 38.65(11.86) | 42.97(12.54) | 39.39(12.61) | 40.68(13.07) | 39.23(12.72) | 39.37(12.89) | 38.89(12.70) |
| Female Occupation (% of women) | 0.67 (0.25) | 0.67 (0.25) | 0.67 (0.24) | 0.67 (0.24) | 0.69 (0.23) | 0.72 (0.22) | 0.65 (0.22) | 0.65 (0.22) | 0.65 (0.22) | 0.64 (0.22) |
| Public Sector | 0.28 (0.45) | 0.25 (0.44) | 0.24 (0.43) | 0.22 (0.41) | 0.30 (0.46) | 0.29 (0.45) | 0.17 (0.38) | 0.16 (0.37) | 0.13 (0.34) | 0.12 (0.33) |
| Self-employment | 0.04 (0.18) | 0.05 (0.21) | 0.02 (0.15) | 0.04 (0.20) | 0.05 (0.21) | 0.05 (0.21) | 0.05 (0.22) | 0.06 (0.25) | 0.03 (0.18) | 0.05 (0.22) |
| Number of Observations (person-years) | 4,865 | 2,478 | 4,609 | 1,251 | 4,276 | 1,688 | 21,991 | 9,713 | 37,101 | 14,024 |
Notes: Figures for all variables are arithmetic means, with standard deviations shown in parentheses. Column “Mothers Only” includes post-birth observations only.
Sources: GSOEP 1984–2001; BHPS 1991–2001; and NLSY 1979–1996.