The Geography of Poverty and Wealth

Author(s): Jeffrey D. Sachs, Andrew D. Mellinger and John L. Gallup

Source: Scientific American , Vol. 284, No. 3 (MARCH 2001), pp. 70-75

Published by: Scientific American, a division of Nature America, Inc. Stable URL: https://www.jstor.org/stable/10.2307/26059132