In 2011, china revised its poverty line upward to 2,300 yuan per year, or 6.3 yuan per day. at the prevailing exchange rate, this was equal to a little less than a single u. s. dollar. some commentators felt that china's poverty line fell short of the world bank's poverty line of $1.25 per day, in 2005 purchasing power parity (ppp) u. s. dollars. would you agree? "what other information would you need to evaluate this claim? "