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Book
Estimating Poverty Rates in Target Populations : An Assessment of the Simple Poverty Scorecard and Alternative Approaches
Authors: --- --- --- --- --- et al.
Year: 2016 Publisher: Washington, D.C. : The World Bank,

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Abstract

The performance of the Simple Poverty Scorecard is compared against the performance of established regression-based estimators. All estimates are benchmarked against observed poverty status based on household expenditure (or income) data from household socioeconomic surveys that span nearly a decade and are representative of subnational populations. When the models all adopt the same "one-size-fits-all" training approach, there is no meaningful difference in performance and the Simple Poverty Scorecard is as good as any of the regression-based estimators. The findings change, however, when the regression-based estimators are "trained" on "training sets" that more closely resemble potential subpopulation test sets. In this case, regression-based models outperform the nationally calculated Simple Poverty Scorecard in terms of bias and variance. These findings highlight the fundamental trade-off between simplicity of use and accuracy.


Book
The Role of Inequality for Poverty Reduction
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Year: 2020 Publisher: Washington, D.C. : The World Bank,

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Abstract

Using World Bank PovcalNet data from 1974-2018 for 135 countries, this paper approximates the identity that links growth in mean incomes and changes in the distribution of relative incomes to reductions in absolute poverty, and, in turn, examines the role of income inequality for poverty reduction. The analysis finds that the assumption that income is log-normally distributed allows one to approximate the identity well. Using this approximation, both the growth and inequality elasticities of poverty reduction are calculated. The inequality elasticity of poverty reduction is larger, on average, compared to the (absolute) growth elasticity of poverty reduction. Moreover, the (absolute) growth elasticity declines steeply with a country's initial level of inequality. However, despite these results, most of the observed changes in poverty can be explained by changes in mean incomes. This is a consequence of changes in income inequality (as measured by percentage changes in the standard deviation of log-income) being an order of magnitude smaller than changes in mean incomes. Overall, the results highlight the important role income inequality can play in reducing poverty even if prior poverty changes have, in large part, been a consequence of economic growth.


Book
Small Area Estimation of Non-Monetary Poverty with Geospatial Data
Authors: --- --- --- ---
Year: 2020 Publisher: Washington, D.C. : The World Bank,

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This paper uses data from Sri Lanka and Tanzania to evaluate the benefits of combining household surveys with geographically comprehensive geospatial indicators to generate small area estimates of non-monetary poverty. The preferred estimates are generated by utilizing subarea-level geospatial indicators in a household-level empirical best predictor mixed model with a normalized welfare measure. Mean squared errors are estimated using a parametric bootstrap procedure. The resulting estimates are highly correlated with non-monetary poverty calculated from the full census in both countries, and the gain in precision is comparable to increasing the size of the sample by a factor of three in Sri Lanka and five in Tanzania. The empirical best predictor model moderately underestimates uncertainty, but coverage rates are similar to standard survey-based estimates that assume independent outcomes across clusters. A variety of checks, including adding noise to the welfare measure and model-based and design-based simulations, confirm that the main results are robust. The results demonstrate that combining household survey data with subarea-level geospatial indicators can greatly increase the precision of survey estimates of non-monetary poverty at comparatively low cost.


Book
Poverty in Latin America : Sources of Welfare Disparities in Ecuador
Authors: ---
Year: 2009 Publisher: Washington, D.C., The World Bank,

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Abstract

This paper contributes to the analysis of spatial poverty in Ecuador by deepening the understanding of the constraints faced by the poor in the country through an investigation of the role of portable characteristics (human capital) and geography in explaining welfare. At the national level, the results indicate that these characteristics explain 72 percent of the differences in welfare level between urban and rural areas, while returns to these characteristics account for 28 percent of the difference. Comparing a leading and a lagging region, such as the coast versus the Amazon, the characteristics explain about 90 percent of the welfare differential in urban areas, while the returns explain about 30 percent of the welfare differential in rural areas. Among the characteristics analyzed, education is the most important variable for explaining differences in living conditions between urban and rural areas in Ecuador.


Book
Assessing Poverty and Distributional Impacts of the Global Crisis in the Philippines : A Microsimulation Approach
Authors: --- --- ---
Year: 2010 Publisher: Washington, D.C., The World Bank,

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As the financial crisis has spread through the world, the lack of real-time data has made it difficult to track its impact in developing countries. This paper uses a micro-simulation approach to assess the poverty and distributional effects of the crisis in the Philippines. The authors find increases in both the level and the depth of aggregate poverty. Income shocks are relatively large in the middle part of the income distribution. They also find that characteristics of people who become poor because of the crisis are different from those of both chronically poor people and the general population. The findings can be useful for policy makers wishing to identify leading monitoring indicators to track the impact of macroeconomic shocks and to design policies that protect vulnerable groups.


Book
Poverty in Latin America : Sources of Welfare Disparities in Ecuador
Authors: ---
Year: 2009 Publisher: Washington, D.C., The World Bank,

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Abstract

This paper contributes to the analysis of spatial poverty in Ecuador by deepening the understanding of the constraints faced by the poor in the country through an investigation of the role of portable characteristics (human capital) and geography in explaining welfare. At the national level, the results indicate that these characteristics explain 72 percent of the differences in welfare level between urban and rural areas, while returns to these characteristics account for 28 percent of the difference. Comparing a leading and a lagging region, such as the coast versus the Amazon, the characteristics explain about 90 percent of the welfare differential in urban areas, while the returns explain about 30 percent of the welfare differential in rural areas. Among the characteristics analyzed, education is the most important variable for explaining differences in living conditions between urban and rural areas in Ecuador.


Book
Assessing Poverty and Distributional Impacts of the Global Crisis in the Philippines : A Microsimulation Approach
Authors: --- --- ---
Year: 2010 Publisher: Washington, D.C., The World Bank,

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Abstract

As the financial crisis has spread through the world, the lack of real-time data has made it difficult to track its impact in developing countries. This paper uses a micro-simulation approach to assess the poverty and distributional effects of the crisis in the Philippines. The authors find increases in both the level and the depth of aggregate poverty. Income shocks are relatively large in the middle part of the income distribution. They also find that characteristics of people who become poor because of the crisis are different from those of both chronically poor people and the general population. The findings can be useful for policy makers wishing to identify leading monitoring indicators to track the impact of macroeconomic shocks and to design policies that protect vulnerable groups.


Book
Revisiting the Poverty Trend in Rwanda : 2010/11 to 2013/14
Authors: ---
Year: 2018 Publisher: Washington, D.C. : The World Bank,

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Abstract

According to the official statistics published by the National Institute of Statistics of Rwanda, the country registered a decline in poverty from 46 percent in 2010/11 to 39 percent in 2013/14. This declining poverty trend was broadly debated and repeatedly questioned in national and international forums, which provided the primary motivation for this study. Using data from the third and fourth rounds of the Integrated Household Living Conditions Surveys, this paper revisits the national poverty numbers and corroborates the poverty rates published by the National Institute of Statistics of Rwanda. Underlying the paper's conclusions is a detailed theoretical and analytical framework for making poverty comparisons over time. Furthermore, the paper shows that after adjusting for spatial and temporal price differences, the poverty rate based on the international poverty line of USD 1.90 per day per capita shows that there was a reduction in poverty between 2010/11 and 2013/14.


Book
Why Don't We See Poverty Convergence?
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Year: 2009 Publisher: Washington, D.C., The World Bank,

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We are not seeing faster progress against poverty amongst the poorest developing countries. Yet this is implied by widely accepted "stylized facts" about the development process. The paper tries to explain what is missing from those stylized facts. Consistently with models of economic growth incorporating borrowing constraints, the analysis of a new data set for 100 developing countries reveals an adverse effect on consumption growth of high initial poverty incidence at a given initial mean. A high incidence of poverty also entails a lower subsequent rate of progress against poverty at any given growth rate (and poor countries tend to experience less steep increases in poverty during recessions). Thus, for many poor countries, the growth advantage of starting out with a low mean ("conditional convergence") is lost due to their high poverty rates. The size of the middle class - measured by developing-country, not Western, standards - appears to be an important channel linking current poverty to subsequent growth and poverty reduction. However, high current inequality is only a handicap if it entails a high incidence of poverty relative to mean consumption.


Book
Inflation and the Poor
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Year: 1999 Publisher: Washington, D.C., The World Bank,

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Abstract

May 2000 - The poor suffer more from inflation than the rich do, reveals this survey of poor people in 38 countries. Using polling data for 31,869 households in 38 countries and allowing for country effects, Easterly and Fischer show that the poor are more likely than the rich to mention inflation as a top national concern. This result survives several robustness checks. Also, direct measures of improvements in well-being for the poor - the change in their share of national income, the percentage decline in poverty, and the percentage change in the real minimum wage - are negatively correlated with inflation in pooled cross-country samples. High inflation tends to lower the share of the bottom quintile and the real minimum wage - and tends to increase poverty. This paper - a joint product of Macroeconomics and Growth, Development Research Group, and the International Monetary Fund - is part of a larger effort to study the effects of macroeconomic policies on growth and poverty.

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