Columbia subject headings:
Harvard subject headings:
Economics--Research--Germany--History.
Germany--Economic conditions--20th century.
Germany--Economic conditions--21st century.
Germany--Economic policy--20th century.
Germany--Economic policy--21st century.
Institut für Wirtschaftsforschung Halle--History.
Rheinisch-Westfälisches Institut für Wirtschaftsforschung Essen--History.
Princeton subject headings:
Economics--Research--Germany--History.
Germany--Economic conditions--20th century.
Germany--Economic conditions--21st century.
Germany--Economic policy--20th century.
Germany--Economic policy--21st century.
RWI - Leibniz-Institut für Wirtschaftsforschung--History.