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Publications (23)
– And why it matters
More accurate estimates of inequality trends allow us to measure progress towards achieving reductions in inequality within and between countries. Deviations in trend patterns can provide insights for further explorations of the root causes and consequences of varying degrees of economic inequality...
Recent analysis of inequality trends — which relies on the World Income Inequality Database (WIID) Companion, a pair of rich new datasets — assesses the extent to which inequality trends depend on certain views about inequality, including whether absolute or relative income changes matter more and...
The many faces of inequality Measuring inequality isn’t as simple as it may seem. We know that since the 1970s global inequality has been falling in relative terms, but absolute inequality has been increasing over the same period. There are also substantial differences in trends across the different...
There is a growing need to understand income inequality trends and how they interplay with other social, economic, and political outcomes, both at the country level and worldwide. Despite significant progress during the last decades in improving the availability of data to study inequalities...
In one of the most unequal countries in the world, South Africa, the poorest 40% have annual incomes of less than US$1,000 (£727) per person. The comparable incomes for the richest 10% are more than US$39,000 per person – nearly 40 times higher than those of the bottom 40%. Those numbers, which are...
Income inequality is the result of complex processes with multiple interacting driving forces but understanding those drivers in emerging economies is particularly difficult because of data and analytical challenges. While most middle-income countries produce comprehensive household surveys these...
Engagement is needed at all levels to address ongoing inequality faced in South Africa. This was the primary aim of a recent policy seminar in Pretoria, organized through the framework of the Mandela Initiative and partners, including UNU-WIDER. The idea of the gathering was to engage a group of...
A considerable body of recent research suggests that inequality between ethnic groups has major socioeconomic implications. ‘Economists have long recognised that there is an association between inequality and development’, reported the Economist in 2015, drawing on a much-discussed article by...
Blog
27 August 2014 Jukka Pirttilä and Tony Addison The last few months have seen major research activity in the area of inequality at UNU-WIDER. An update of the World Income Inequality Database (WIID) was first published in June. This is the most comprehensive database on inequality currently available...
Research Brief
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– How much are we willing to allow top earners to squeeze the poor?
The majority of income inequality occurs at the tails of the income distribution The Gini coefficient does not provide a representative measure of income inequality When the top 10% of income earners expand their share of national income it often appears to be to the detriment of the poorest 40%...
Blog
For several decades, UNU-WIDER has actively worked on pathfinding and groundbreaking research on inequalities. We host one of the most extensive collections of income inequality statistics in the world freely available and updated annually. I have written previously about how the institute was...
– Correcting the data on top incomes in China
China has experienced fast economic growth over the last forty years. The number of Chinese billionaires has grown exceptionally fast and their wealth has increased enormously. At the same time, official statistics report decreasing inequality over the most recent decade. However, correcting data...
After 20 years of contributions to income inequality research, the World Income Inequality Database (the WIID) is getting a new expansion that will greatly strengthen knowledge on inequalities. UNU-WIDER is now working to produce a user-friendly companion database to the classic WIID that will...
Many countries today experience increasing or persistent income inequality, a major concern for citizens and politicians alike. This concern is justified; as some individuals get richer, most people’s real incomes stagnate. Widening income inequality brings challenges to a nation’s development...
Blog
Data is the key to informed decision-making in today's rapidly changing world. As nations strive to address complex economic challenges, data-driven insights have become indispensable. South Africa is no exception, facing issues like declining GDP per capita, sluggish productivity growth, and rising...
– Reflections on my first six months as Director
My first six months as Director of UNU-WIDER have been busy, enlightening, and rewarding. We’ve launched a new work programme, with flagship projects focused on a cohesive research base addressing key SDGs; I’ve also worked on fostering partnerships to cement the Institute’s place as a valuable...
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