No doubt everyone is saving up their pennies to buy their very own copy of Political Cleavages and Social Inequalities: A Study of Fifty Democracies, 1948–2020 but here's something you can get for free.....The World Inequality Report 2022, by Chancel, Piketty, Saez and Zucman!
"This report presents the most up-to-date synthesis of international research efforts to track global inequalities. The data and analysis presented here are based on the work of more than 100 researchers over four years, located on all continents, contributing to the World Inequality Database (WID.world), maintained by the World Inequality Lab. This vast network collaborates with statistical institutions, tax authorities, universities and international organizations, to harmonize, analyze and disseminate comparable international inequality data.
Contemporary income and wealth inequalities are very large
An average adult individual earns PPP €16,700 (PPP USD23,380) per year in 2021, and the average adult owns €72,900 (USD102,600). These averages mask wide disparities both between and within countries. The richest 10% of the global population currently takes 52% of global income, whereas the poorest half of the population earns 8% of it. On average, an individual from the top 10% of the global income distribution earns €87,200 (USD122,100) per year, whereas an individual from the poorest half of the global income distribution makes €2,800 (USD3,920) per year (Figure 1).
Global wealth inequalities are even more pronounced than income inequalities. The poorest half of the global population barely owns any wealth at all, possessing just 2% of the total. In contrast, the richest 10% of the global population own 76% of all wealth. On average, the poorest half of the population owns PPP €2,900 per adult, i.e. USD4,100 and the top 10% own €550,900 (or USD771,300) on average (Figure 4)"
I know you can't wait to read all 236 pages!