In the Current Population Survey, employed persons include people who performed at least 15 hours of unpaid work in a family-operated enterprise.
Sources
- Labor Force Characteristics (CPS) (bls.gov)
- https://fred.stlouisfed.org/categories/32444 (fred.stlouisfed.org)
- https://www2.census.gov/programs-surveys/cps/methodology/Source%20and%20Accuracy.pdf (www2.census.gov)