Dissent: How Tax Havens Make Us Poor.
“In the United States, repatriating hidden fortunes could amount to increasing the taxes on the wealthiest citizens by 18 percent. For developing countries, the stakes are higher. By Zucman’s estimates, 30 percent of Africa’s financial wealth in 2014 was held offshore, costing the continent’s governments and its people $14 billion. That’s compared to 10 percent of financial wealth in Europe, 4 percent in both the United States and Asia, 9 percent in Canada, and more than 50 percent of financial wealth held by Russians and citizens of the Gulf countries ...”