As the workforce ages in some countries and middle-aged workers are in short supply, industrial robots are stepping in to perform their jobs, according to a recent paper by economists Daron Acemoglu and Pascual Restrepo.
The big picture: Today, Asian countries have about eight workers for every person over the age of 65, and Europe and North America have 4 or fewer, according to the UN. But by 2050, seven Asian countries, 24 European and four Latin American will have a ratio of less than 2 workers per retiree, the UN projects. Experts say the U.S. social security system is stable at a ratio of 3 workers per retiree. When it falls to 2 to 1, they say the program becomes unsustainable.