中美GDP最新预测：美国冲上217万亿，中国实现大逆转，反超71万亿

Group 1 - The International Monetary Fund (IMF) predicts that China's GDP will exceed $40 trillion, reaching $40.72 trillion by 2025, while the US GDP is projected at $30.51 trillion, indicating a significant lead for both countries [2][12][19] - The difference in GDP calculations between China and the US arises from the methods used: China employs the production method, while the US uses the expenditure method, leading to substantial discrepancies in reported figures [4][8][10] - The production method used by China focuses on actual output from agriculture and industry, whereas the expenditure method in the US includes all spending, even on illegal goods, resulting in a higher GDP figure [6][10][21] Group 2 - The IMF's GDP forecast for China, calculated using purchasing power parity (PPP), is $40.72 trillion, while the US GDP, calculated at current exchange rates, is $30.51 trillion, showing a gap of 71 trillion RMB [12][15][19] - The purchasing power parity method accounts for price differences between countries, providing a more accurate reflection of real purchasing power compared to exchange rate calculations [15][17] - China's position as the world's largest industrial manufacturer, producing a significant portion of global steel, cement, and home appliances, supports its economic strength and justifies the GDP figures [21][23]