Publication: The Developing World Is Poorer Than We Thought, but No Less Successful in the Fight against Poverty
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Date
2010
ISSN
00335533
Published
2010
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A new data set on national poverty lines is combined with new price data and almost 700 household surveys to estimate absolute poverty measures for the developing world. We find that 25% of the population lived in poverty in 2005, as judged by what "poverty" typically means in the world's poorest countries. This is higher than past estimates. Substantial overall progress is still indicated--the corresponding poverty rate was 52% in 1981--but progress was very uneven across regions. The trends over time and regional profile are robust to various changes in methodology, though precise counts are more sensitive.
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Publication The Developing World is Poorer Than We Thought, but No Less Successful in the Fight Against Poverty(Washington, DC: World Bank, 2008-08)The paper presents a major overhaul to the World Bank's past estimates of global poverty, incorporating new and better data. Extreme poverty-as judged by what "poverty" means in the world's poorest countries-is found to be more pervasive than we thought. Yet the data also provide robust evidence of continually declining poverty incidence and depth since the early 1980s. For 2005 we estimate that 1.4 billion people, or one quarter of the population of the developing world, lived below our international line of $1.25 a day in 2005 prices; 25 years earlier there were 1.9 billion poor, or one half of the population. Progress was uneven across regions. The poverty rate in East Asia fell from almost 80 percent to under 20 percent over this period. By contrast it stayed at around 50 percent in Sub-Saharan Africa, though with signs of progress since the mid 1990s. Because of lags in survey data availability, these estimates do not yet reflect the sharp rise in food prices since 2005.Publication China is Poorer than we Thought, But No Less Successful in the Fight Against Poverty(World Bank, Washington, DC, 2008-05)In 2005, China participated for the first time in the International Comparison Program (ICP), which collects primary data across countries on the prices for an internationally comparable list of goods and services. This paper examines the implications of the new Purchasing Power Parity (PPP) rate (derived by the ICP) for China's poverty rate (by international standards) and how it has changed over time. We provide estimates with and without adjustment for a likely sampling bias in the ICP data. Using an international poverty line of USD 1.25 at 2005 PPP, we find a substantially higher poverty rate for China than past estimates, with about 15% of the population living in consumption poverty, implying about 130 million more poor by this standard. The income poverty rate in 2005 is 10%, implying about 65 million more people living in poverty. However, the new ICP data suggest an even larger reduction in the number of poor since 1981.Publication More Relatively-Poor People in a Less Absolutely-Poor World(World Bank, Washington, DC, 2012-07)Relative deprivation, shame and social exclusion can matter to the welfare of people everywhere. The authors argue that such social effects on welfare call for a reconsideration of how we assess global poverty, but they do not support standard measures of relative poverty. The paper argues instead for using a weakly-relative measure as the upper-bound complement to the lower-bound provided by a standard absolute measure. New estimates of global poverty are presented, drawing on 850 household surveys spanning 125 countries over 1981-2008. The absolute line is $1.25 a day at 2005 prices, while the relative line rises with the mean, at a gradient of 1:2 above $1.25 a day. The authors show that these parameter choices are consistent with cross-country data on national poverty lines. The results indicate that the incidence of both absolute and weakly-relative poverty in the developing world has been falling since the 1990s, but more slowly for the relative measure. While the number of absolutely poor has fallen, the number of relatively poor has changed little since the 1990s, and is higher in 2008 than 1981.Publication China's (Uneven) Progress Against Poverty(World Bank, Washington, D.C., 2004-09)While the incidence of extreme poverty in China fell dramatically over 1980-2001, progress was uneven over time and across provinces. Rural areas accounted for the bulk of the gains to the poor, though migration to urban areas helped. The pattern of growth mattered. Rural economic growth was far more important to national poverty reduction than urban economic growth. Agriculture played a far more important role than the secondary or tertiary sources of gross domestic product (GDP). Rising inequality within the rural sector greatly slowed poverty reduction. Provinces starting with relatively high inequality saw slower progress against poverty, due both to lower growth and a lower growth elasticity of poverty reduction. Taxation of farmers and inflation hurt the poor. External trade had little short-term impact.Publication Are There Lessons for Africa from China's Success against Poverty?(2009)At the outset of China's reform period, the country had a far higher poverty rate than Africa as a whole. Within five years that was no longer true. This paper tries to explain how China escaped from a situation in which extreme poverty persisted due to failed and unpopular policies. While acknowledging that Africa faces constraints that China did not, two lessons for Africa stand out. The first is the initial importance of productivity growth in smallholder agriculture, which will require both market-based incentives and public support. The second is the role played by strong leadership and a capable public administration at all levels of government.
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