The United States leads the world as the strongest economy, with a GDP exceeding $27 trillion. Its success is due to its technological innovation, robust financial market, and ability to attract global investment. China ranks second, with a GDP close to $20 trillion, standing out for its investment in infrastructure and digitalization.
From my understanding, that is on something contrast not to have some good economical backgrounds, because of how the governors of the country is, for me I will say that that China have good economy and united of America also have good economy, but the question is not something that we shall discuss by assumptions, because the way we are discussing about these, I believe we need to make a research about GDP of top five countries to know the country that have highest economic research.