The purchasing power parity (PPP) theory uses the long-term equilibrium exchange rate of two currencies to equalize their purchasing power. Developed by Gustav Cassel in 1920, it is based on the law...
The PPP conversion rate for China is 3.69 Yuan Renminbi (CNY) for 1 US dollar (IMF calculations, 2008 data, estimates). The real exchange rate (as of 2009-04-03) is 6.83 Yuan Renminbi for 1 US...