who has the most powerful economy in the world
List of countries by GDP (nominal) The United States is the world's largest economy with a GDP of approximately $19.39 trillion, notably due to high average incomes, a large population,[7] capital investment, moderate unemployment,[8] high consumer spending,[9] a relatively young population,[10] and technological innovation.[11] Tuvalu is the world's smallest national economy, with a GDP of about $32 million, because of its very small population, a lack of natural resources, reliance on foreign aid, negligible capital investment, demographic problems, and low average incomes.[12]