期刊名称：Discussion Papers / Ibero America Institute for Economic Research (IAI)
出版年度：2007
卷号：2007
出版社：Ibero America Institute for Economic Research
摘要：We estimate and analyze the global income distribution from
national log-normal income distributions for the years 1970 to 2003, as well as
the income distribution of seven regional subsamples. From these distributions
we obtain measures for global and regional inequality and poverty, and find
decreasing global poverty and inequality during the time period. By decomposing
inequality into within and between country inequality using Theils’ measure of
inequality, we observe declining inequality between countries whereas overall
inequality within countries increased. Furthermore, we calculate growth
incidence curves for five year periods between 1970 and 2003, as well as a
growth incidence curve for the entire period and corresponding rates of pro-poor
growth. In the global income distribution, the 8.5th to 63.5th global income
percentiles experienced above average percentile growth rates, while the
remaining very lowest quantiles experienced also the lowest percentile growth
rates. Using the regional decomposition we find that while in 1970 more than
half of the worlds extreme poor and poor people lived in East Asia, it is
Sub-Saharan Africa where nowadays two thirds of the extreme poor and half of the
worlds poor live.
