Appendix A: Data Selection
This appendix details the different steps of the data selection process. First selection on age and
employment status (full-time, regular part-time or training within the firm). Exclusion of self-employed
workers and computation of weights as relative to the mean weight. The sample size is 32493 observa-
tions (6171 workers).
Missing variables on firm characteristics (especially firm size) and corrections for intersections be-
tween industries and between occupations reduced the sample size substantially. Moreover, the con-
struction of dummies for ranks within occupations and the use of first and second lag of the variables
lead to supplementary exclusions of observations. The final number of observations is 11929. Further
selection of workers who remain within their firm (without change or with intra-firm job change) gives
a sample size of 11159 observations (3487 workers).
Sample Statistics (Weighted) GSOEP- All Workers
Real monthly Wage (DM 1985) after Tax |
2280.9 |
Years in School |
11.5 |
Age |
36.2 |
Percentage Female |
42.3 |
Percentage German |
90.9 |
Percentage Blue-Collars |
40.2 |
Percentage White-Collars |
47.5 |
Percentage Civil Servant |
9.8 |
Percentage Trainees |
2.5 |
Number of Observations |
32492 |
Number of Individuals |
6171 |
Sample Statistics (Weighted) GSOEP- Workers Within Firm
Real monthly Wage (DM 1985) after Tax |
2177.72 |
Years in School |
11.1 |
Age |
41.7 |
Percentage Female |
38.5 |
Percentage German |
70.3 |
Percentage Blue-Collars |
53.4 |
Percentage White-Collars |
38.4 |
Percentage Civil Servant |
8.2 |
Number of Observations |
11159 |
Number of Workers |
3487 |
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