Columbia subject headings:
Age distribution (Demography)
Expenditures, Public--Forecasting.
Expenditures, Public.
Social policy.
Harvard subject headings:
Age distribution (Demography)
Expenditures, Public--Forecasting.
Expenditures, Public.
Social policy.
Princeton subject headings:
Age distribution (Demography)
Expenditures, Public--Forecasting.
Expenditures, Public.
Social policy.