Definition
Code only for EMPTYPE_WB_1=1, 4, 5, 7, 9 (wage employees), otherwise code as missing.
Unit of time for the wage variable of the secondary job.
Use information from all sections (12 months or 7 days) that ask this question.
First use information from the 12 month section. For all missing values and observations coded as 9, use the 7 day section.