No?

https://wir2026.wid.world/

https://wir2026.wid.world/www-site/uploads/2026/04/World_Inequality_Report_2026.pdf

pages 130 to 133 is about "Chapter 7. Global Taxation of Multi-Millionaires"

Searching for references does bring up something page 206, but again, more half of their sources are just themselves.

Actually the only two external sources are the world inequality report from 2022 and the "real time inequality" by the national bureau of economic research.

References
Alvaredo, F (2018). World Inequality Report 2018. Harvard
University Press.
Alvaredo, Facundo et al. (2022). “The inequality (or the
growth) we measure: Data gaps and the distribution of
incomes”. In: World Inequality Lab, Working Paper Series
2022/07.
Blanchet, Thomas, Emmanuel Saez, and Gabriel Zucman
(2022). “Real-time inequality”. In: National Bureau of
Economic Research.
Chancel, Lucas, Ignacio Flores, et al. (2025). Distributional
National Accounts Guidelines: Methods and Concepts used
in the World Inequality Database. https://wid.world/d
ocument/distributional-national-accounts-dina
-guidelines-2025-methods-and-concepts-used-i
n-the-world-inequality-database/. Version 3.0.
Chancel, Lucas, Thomas Piketty, et al. (2022). World
Inequality Report 2022. Harvard University Press.
Gómez-Carrera, Ricardo et al. (2024). “Global Inequality
Update 2024: New Insights from Extended WID
Macro Series”. In: World Inequality Lab, Technical Notes
2024/11.
Neef, Theresa and Anne-Sophie Robilliard (2021). “Half
the Sky? The Female Labor Income Share in a Global
Perspective”. In: World Inequality Lab, Working Paper
Series 2021/22.
Nievas, Gastón and Thomas Piketty (2025). “WID National
Accounts Series: Updated and Extended Coverage
1800-2023”. I