Columbia subject headings:
European Union countries--Economic integration--Mathematical models.
European Union countries--Economic policy--Mathematical models.
European Union--Membership.
Monetary policy--European Union countries--Mathematical models.
Monetary unions--European Union countries--Mathematical models.
Harvard subject headings:
European Union countries--Economic integration--Mathematical models.
European Union countries--Economic policy--Mathematical models.
European Union--Membership.
Monetary policy--European Union countries--Mathematical models.
Monetary unions--European Union countries--Mathematical models.
Princeton subject headings:
European Union countries--Economic integration--Mathematical models.
European Union countries--Economic policy--Mathematical models.
European Union--Membership.
Monetary policy--European Union countries--Mathematical models.
Monetary unions--European Union countries--Mathematical models.