Inequality and the Impact of Growth on Poverty: Comparative Evidence for Sub-Saharan Africa

This study explores the extent to which inequality affects the impact of income growth on the rates of poverty changes in sub-Saharan Africa (SSA) compared to non-SSA, based on an unbalanced panel of 86 countries over 1977-2004. For all three measures of poverty-headcount, gap, and squared gap-the impact of GDP growth on poverty reduction is a decreasing function of initial inequality. The impacts are similar in direction for SSA and non-SSA, so that within both regions there are considerable disparities in the responsiveness of poverty to income growth, depending on inequality. Nevertheless, the income-growth elasticity is substantially less for SSA, implying relatively small poverty-reduction response to growth.