Columbia subject headings:
Harvard subject headings:
Economic forecasting--Germany--History--20th century.
Employment forecasting--Germany--History--20th century.
Germany--Economic conditions--20th century
Labor market--Germany--History--20th century.
Labor supply--Germany--History--20th century.
Princeton subject headings:
Economic forecasting--Germany--History--20th century.
Employment forecasting--Germany--History--20th century.
Germany--Economic conditions--20th century.
Labor market--Germany--History--20th century.
Labor supply--Germany--History--20th century.