This paper examines the extent to which projected aggregate tax revenue changes, association with population ageing over the next 50 years, can be expected to finance expected increases in social welfare expenditures. Projections from two separate models, dealing with social expenditures and...

Endogenous growth models, such as Barro (1990), predict that governmentexpenditure and taxation will have both temporary and permanent effects on growth.We test this prediction using panels of annual and period-averaged data for OECDcountries during 1970-95, isolating long-run from short-run...