There are millions of people who were born in Europe and currently live in the United States, mainly of working age. There are a comparatively much smaller number of Americans living in Europe, a significant portion of which are well-off retirees (well-off by European standards). This is a fairly typical migration pattern for two places at different levels of economic development. A larger group of economic migrants move to the richer region in search of a better life, while a much smaller group of retirees move to the poorer region in an effort to boost their spending power.