PS: 1- https://en.wikipedia.org/wiki/Poverty /“CHUẨN NGHÈO ĐÓI” THEO WB:  The poverty line threshold of $1.25 per day, as set by The World Bank, is controversial. Each nation has its own threshold for absolute poverty line; in the United States, for example, the absolute poverty line was US$15.15 per day in 2010 (US$22,000 per year for a […]