The Chinese government used to be completely communist and all government run now there is highly regulated private industry
The 3 significant causes to World War 1 would be:1. Treaty of Versailies, which forces Germans into accepting Full Blame for WWI. 2.This caused Germany to lose a lot of its lands. 3. Forced them to pay restitution for war dameges to countries like France, and Great Britain ect. 4. (just for the info) This made their leader very angry and it started a whole new perspective upon the nations view point.
The economy in the United States in the 1920's varied greatly from European countries. After WWl, Europe struggled to rebuild. Europe had taken the brunt of the attacks and went into a deep depression. The United States in contrast boomed. The economy was better than ever before. Since no attacks had happened on American soil, we were able to mass produce consumer goods, etc. People were buying on credit, investing in the stock market, and moving to the city. Life was good in America; not so good in Europe.