The present and future of global inequality

The 2026 World Economic Forum Annual Meeting in Davos is in full swing, and one topic that is always high on the agenda is inequality. A tiny group of around half a million ultra-high-net-worth individuals — those with more than $30 million in assets, many of whom will be in attendance at Davos — now manages roughly $60 trillion of wealth. The last few years have been particularly kind to this group, which dominates holdings in the AI businesses driving global growth. One policy question being debated at Davos is whether there will be enough demand for goods and services in a global economy where wealth is so concentrated.

At World Data Lab we have compiled a global database of 194 countries and economies to look into this question. We have collected income and consumption distribution data from every country in the world, modelling the distribution for those countries that do not have surveys conducted by national statistical offices. This is no simple task. Others — notably the World Inequality Report prepared by Thomas Piketty and colleagues — do similar work. For all such exercises, judgments need to be made on the indicator of interest (consumption or income, before tax or after, non-income variables), on how to compare across countries and over time, on how to adjust for price differentials, and on how to fill in missing data. There are also many indicators of inequality from which to choose — the Gini coefficient, the Theil index or a modified Palma ratio, to name a few.

The full analysis explores the present level of global inequality, the trajectory we expect over the next decade and the policy levers — labour-market formalisation, women's economic participation, digital connectivity and targeted social transfers — that the data suggests have the largest measurable effect. Read the complete piece on the World Data Lab blog.