Projections of age-related public expenditure growth have raised widespread concerns about fiscal sustainability. This paper examines how total expenditure would develop under four policy rules on public expenditure growth. Some simple arithmetic of expenditure, GDP, and population is reviewed...

Traditional fiscal indicators focused on measures of current deficits and debt miss the potentially important implications of current policies for future public finances. This could be problematic, including in the case of Europe, where population aging is expected to pose additional fiscal...