Columbia subject headings:
Age distribution (Demography)--Economic aspects--OECD countries.
Aging--Economic aspects--OECD countries.
Older people--Government policy--OECD countries.
Older people--OECD countries--Economic conditions.
Harvard subject headings:
Princeton subject headings:
Aging--Economic aspects.
Older people--Care.
Older people--Economic conditions.
Older people--Government policy.
Organisation for Economic Co-operation and Development.