Part I of this paper first presents information on trends and composition of social expenditure as in the OECD Social Expenditure database for the years 1980 – 2007. Over this period, public social expenditure as a percentage of GDP, on average across OECD, increased from 15.6% to 19.2%....

This paper first presents information on trends and composition of social expenditure across the OECD. Gross public social expenditure on average across OECD increased from 16% of GDP in 1980 to 21% in 2005, of which public pensions (7% of GDP) and public health expenditure (6% of GDP) are the...