中美日26年GDP预测出炉：美31万亿，日跌破4.5万亿，中国令人意外

Group 1 - The core viewpoint of the article highlights the contrasting GDP forecasts for the US, Japan, and China in 2026, reflecting their respective economic conditions and challenges [1][29]. - The US is projected to maintain its position as the world's largest economy with a nominal GDP exceeding $31 trillion, driven by AI investments and tax policy effects, but faces risks from high debt levels and a service-oriented economy [3][8][29]. - Japan's GDP is expected to decline to approximately $4.46 trillion, potentially being surpassed by India, due to long-term issues such as currency depreciation, an aging population, and ineffective monetary policies [10][12][16][29]. Group 2 - China's GDP forecast of $20.65 trillion indicates a stable growth rate of around 4.2%, supported by real economic upgrades and a large domestic market, contrasting with the more superficial growth seen in the US [19][21][29]. - The article emphasizes that China's growth is underpinned by targeted fiscal policies and a shift towards high-tech exports, moving from "Made in China" to "Created in China" [23][29]. - The ultimate goal of economic development is framed as improving the quality of life for citizens rather than merely increasing GDP figures, highlighting the importance of sustainable growth and social welfare [25][31].