Migration could be a major driver of economic growth amid ageing populations in high-income countries, according to the recently released World Development Report 2023: Migrants, Refugees, and Societies.
Demographic changes in recent decades have meant that there are fewer working age people to support the social security needs of elderly populations in rich countries. Money earned by the working population helps support the expenses of those who have retired. There were seven working adults for every elderly person as of 1950 in high-income Organisation for Economic Co-operation and Development (OECD) countries. This is expected to fall below two by 2050