Are we measuring China's GDP wrong?

The United States has the largest economy in the world, by traditional GDP measures. But when adjustments are made to account for Purchase Price Parity, and the cost differences for similar products, it is China with the largest economy. The United States has a giant services sector, and includes careers that have no equivalent in other countries. The massive legal, finance, insurance, real estate brokerage, and lobbying industries are far larger in the US than in any other country. When economists remove those sectors from the calculation of GDP, the result is "Productive GDP", and involves accounting only for the production of tangible products in the economy. Closing scene, Zhongshan Riverfront, Guangdong Resources and links: Average Cost of College By Country https://educationdata.org/average-cost-of-college-by-country 10 Cities Where $100k Is Worth the Least https://smartasset.com/data-studies/100k-worth-2025 China’s Shocking Worldwide Economic Dominance Revealed https://austrianchina.substack.com/p/chinas-shocking-worldwide-economic China vs US GDP Comparison and What It Says About Their Respective National Power https://www.unz.com/bhua/china-vs-us-gdp-comparison-and-what-it-says-about-their-respective-national-power/ New York Times, You Need $100,000 a Year Just to Get by Here https://www.nytimes.com/2023/05/01/nyregion/you-need-100000-a-year-just-to-get-by-here.html The World’s Busiest Ports https://www.rferl.org/a/29637065.html Hotel stays data from Trip.com