Most developed countries are ageing rapidly. According to the United Nations population database, the proportion of people aged 65 and over in the group of “more developed countries” is projected to rise from 21.5% in 2026 to 32.3% by 2100. There are however significant differences between countries. Such increases pose a threat to social security systems. Without any specific reforms, pension and healthcare spending will rise while contributions from the shrinking working-age population will decline. Which countries are financially most vulnerable to ageing? We analysed this question for 16 developed countries using five ratios in our ageing vulnerability index.
