In a historic agreement on 8 October 2021, 136 countries approved the OECD two-pillar solution in a major overhaul of the century-old international taxation system. At the G20 Summit in Rome on 30 October 2021, the leaders of the world’s biggest economies endorsed the two-pillar solution, decades in the making but which will be implemented in 2023.

The case explores the murky world of tax havens and hidden wealth. The so-called ‘Panama Papers’, ‘Paradise Papers’, ‘Swiss Leaks’ and ‘LuxLeaks’ are essentially digital dumps that exposed where the the ultra-rich had for decades stashed their billions to evade paying taxes. Academics such as Gabriel Zucman have mined these revelations for insights about global wealth inequality.