Ravallion, Martin; Chen, Shaohua; Sangraula, Prem - 2009
The article presents the first major update of the international $1 a day poverty line, proposed in World Development … Report 1990: Poverty for measuring absolute poverty by the standards of the world's poorest countries. In a new and more … representative data set of national poverty lines, a marked economic gradient emerges only when consumption per person is above about …