In this paper, Edison Jakurti studies how people think inheritances should be taxed using a randomized factorial vignette experiment with 8,106 respondents from probability-based panel surveys across ...

In this paper , Simon Briole and Camille Salesse focus on the effect of fine particulate matter (PM2.5), the pollutant responsible for the largest share of health and economic damages attributable to ...

Reference data to track economic inequality at the global level, within countries and over time. Based on the systematic combination of national accounts, survey and fiscal data.

Why did income inequality decline so dramatically during the twentieth century? Existing explanations often emphasise progressive taxation, welfare state expansion, or the economic disruptions caused ...

The declining hegemony of existing powers and the emergence of a multipolar world order make the rethinking of global economic governance under climate constraints both necessary and urgent. A new ...

Land is one of the most important productive assets in agrarian societies, yet its distribution remains highly unequal across many parts of the world. Rural India, where hundreds of millions of people ...

Despite growing interest in inequality in Latin America, long-term evidence for countries like Ecuador has remained limited, especially when it comes to capturing top incomes. This paper addresses ...

How does the international system actually work in practice? Who holds decision-making power, who finances global public goods, and who ultimately benefits from them? More broadly, does institutional ...

What level of economic prosperity and well-being is compatible with global convergence (equality between countries) and the preservation of planetary habitability? Or, to put it differently, what kind ...

We are delighted to present our 2025 Activity Report. Over the past two decades, research on inequality has made significant progress. We have moved beyond a long period marked by absent or fragmented ...

The World Inequality Report 2026, edited by Lucas Chancel, Ricardo Gómez-Carrera, Rowaida Moshrif, and Thomas Piketty is now available at wir2026.wid.world. Prefaced by Jayati Ghosh and Joseph ...