Imputation rules for the implementation of the pre-unification education variable in the BASiD Data Set

Journal for Labour Market Research

Table 2 Imputation Procedure (1)

Category	Characteristics	Criteria	# Individuals
No degree	Age	\(<17\)	778
	First socio-economic spell	employed
High school (Abitur)	Age	17–18	271
	\(\&\)
	School spell	1.0–1.5 years
Vocational training	Age	\(\leq 18\)	3,711
	\(\&\)
	Apprenticeship spell	1.5–3.5 years
Vocational training	Age	19–20	653
and high school	\(\&\)
	Apprenticeship spell	2.5–3.5 years
Technical university	Age	19–20	503
degree	\(\&\)
	School spell	2–3.5 years
	Age	\(\geq\) 20	533
	\(\&\)
	School spell	1.5–3.5 years
	Age	\(\geq\) 20	375
	\(\&\)
	Apprenticeship spell	\(>\) 2.5 years
University degree	Age	\(\geq\) 22	688
	\(\&\)
	School spell	\(\geq\) 3.5 years

Source: BASiD 2007.
Notes: The total number of individuals under consideration is 11,331. The coverage rate (covered individuals \(=\) 7,026/total individuals \(=\) 11,331) of Imputation Procedure (1) is 62%. Note that the number of covered individuals is less than the sum over all categories because of transitions to a higher educational level. We allow for interruptions of the school and apprenticeship spells and for continuing the spell’s duration after the interruption. See also for a graphical illustration of the procedures and a detailed description of interruptions Appendix B and C. After applying the criteria we extrapolate the educational degree to future spells until we observe a change in individuals’ educational status.