Columbia subject headings:
Harvard subject headings:
Age distribution (Demography)--European Union countries.
Demography--European Union countries.
European Union countries--Economic conditions.
European Union countries--Population--Economic aspects.
European Union countries--Social conditions.
Industrial relations--European Union countries
Labor policy--European Union countries
Older people--Employment--European Union countries.
Social security--European Union countries
Princeton subject headings:
Europe--Population.
Industrial relations--Europe.
Older people--Employment--Europe.