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inequality

No, 70% of the world’s poor aren’t women, but that doesn’t mean poverty isn’t sexist

Carolina Sanchez's picture
“Seventy percent of the world’s extreme poor are women”. If you’ve encountered this statistic before, please raise your hand. That is a lot of hands. And yet, this is what we call a ‘zombie statistic’: often quoted but rarely, if ever, presented with a source from which the number can be replicated.

Machine learning and the measurement of injustice

Daniel Mahler's picture

Machine learning methods are increasingly applied in the development policy arena. Among many recent policy applications, machine learning has been used to predict poverty, soil properties, and conflicts.

In a recent Policy Research Working Paper by Paolo Brunori, Paul Hufe and Daniel Mahler (BHM hereafter), machine learning methods are utilized to measure a popular understanding of distributional injustice – the amount of unequal opportunities individuals face. Equality of opportunity is an influential political ideal since it combines two powerful principles: individual responsibility and equality. In a world with equal opportunities, all individuals have the same chances to attain social positions and valuable outcomes. They are free to choose how to behave and they are held responsible for the consequences of their choices.

The 2017 global poverty update from the World Bank

Francisco Ferreira's picture
This year’s global poverty update from the World Bank is a minor one. Until reference year 2008, the World Bank published new poverty estimates every three years, and between 2010 and 2013 we released new numbers every year (see here).

How do taxes and transfers impact poverty and inequality in developing countries?

Gabriela Inchauste's picture

We know that fiscal policy can be harnessed to reduce inequality in low- and middle-income countries, but until now, we knew less about its ability to reduce poverty. Our recent volume looks at the revenue and spending of governments across eight low and middle income countries (Armenia, Ethiopia, Georgia, Indonesia, Jordan, Russia, South Africa and Sri Lanka), and it reveals that fiscal systems, while nearly always reducing inequality, can often worsen poverty.   

Unequal opportunity, unequal growth

Roy Van der Weide's picture

Inequality can be both good and bad for growth, depending on what inequality and whose growth. Unequal societies may be holding back one segment of the population while helping another. Similarly, high levels of inequality may be due to a variety of factors; some good, some bad for growth.

Falling inequality: A Brazilian whodunnit

Francisco Ferreira's picture

Long one of the world’s most unequal countries, Brazil surprised pundits by recording a massive reduction in household income inequality in the last couple of decades. Between 1995 and 2012, the country’s Gini coefficient for household incomes fell by seven points, from 0.59 to 0.52. (For comparison, all of the inequality increase in the United States between 1967 and 2011 amounted to eight Gini points – according to this study.)

Trade has been a global force for less poverty and higher incomes

Ana Revenga's picture

In the ongoing debate about the benefits of trade, we must not lose sight of a vital fact. Trade and global integration have raised incomes across the world, while dramatically cutting poverty and global inequality. 

Within some countries, trade has contributed to rising inequality, but that unfortunate result ultimately reflects the need for stronger safety nets and better social and labor programs, not trade protection.

Measuring inequality isn’t easy or straightforward - Here’s why

Christoph Lakner's picture

This is the third of three blog posts on recent trends in national inequality.

In earlier blogposts on recent trends in inequality, we had referred to measurement issues that make this exercise challenging. In this blogpost we discuss two such issues: the underlying welfare measure (income or consumption) used to quantify the extent of inequality within a country, and the fact that estimates of inequality based on data from household surveys are likely to underreport incomes of the richest households. There are a number of other measurement challenges, such as those related to survey comparability, which are discussed in Poverty and Shared Prosperity 2016 – for a focus on Africa, also see Poverty in a Rising Africa, published earlier in 2016.

Recent trends in national inequality – some encouraging signs though no room for complacency

Christoph Lakner's picture
This is the second of three blog posts on recent trends in national inequality.
 

The previous blog post in this series described the trend in the global and regional averages of national inequality for the period 1988-2013. Now we dig deeper into the trends in inequality at the country level. We describe changes in national inequality during two periods – around 1993 to 2008 and around 2008 to 2013. The long-run spells include all countries for which we have data on inequality around 1993 and 2008, and that data is computed using the same welfare measure (income or consumption). The short-run spells include countries for which we have inequality data around 2008 to 2013; this list is based on the World Bank’s Global Database of Shared Prosperity.

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