Escape from poverty.

• Author: Bailey, Ronald
• Position: Data - Brief Article

In 2000 the world's eight richest nations set the Millennium Development Goals, one of which is to halve the number of people living in extreme poverty (defined as living on less than $1 a day) by 2015. If they succeed, they'll accelerate a trend of growing worldwide prosperity hundreds of years in the making.

University of Groningen economist Angus Maddison calculates that average annual global per capita income fell, in real dollars, from $445 in 1 A.D. to $436 in 1000 A.D. By 1820 it had increased to $667, and by 2001 it was more than $6,049. The U.N. Intergovernmental Panel on Climate Change predicts that by 2050 average global per capita income will be somewhere...