Columbia subject headings:
Labor supply--Austria.
Labor supply--Germany.
Labor supply--Switzerland.
Harvard subject headings:
Labor supply--Austria.
Labor supply--Germany.
Labor supply--Switzerland.
Princeton subject headings:
Labor market--Government policy--Austria.
Labor market--Government policy--Germany.
Labor market--Government policy--Switzerland.
Manpower policy--Austria.
Manpower policy--Germany.
Manpower policy--Switzerland.