Alstadsæter and al. use newly published macroeconomic statistics to estimate the amount of household wealth owned by each country in offshore tax havens. They use these estimates to identify the top wealth shares in ten countries that account for close to half of global GDP, and find that “because offshore wealth is very concentrated at the top, accounting for it increases the top 0.01% wealth share substantially in Europe, even in countries that do not use tax havens extensively.”

There are many interesting graphs on tax havens in this paper.
Who Owns the Wealth in Tax Havens? Macro Evidence and Implications for Global Inequality
Authors: Annette Alstadsæter, Niels Johannesen, and Gabriel Zucman
From: Norwegian University of Life Sciences – University of Copenhagen – Berkeley

Rich Pickings? Risk, Return, and Skill in the Portfolios of the Wealthy
Authors: Laurent Bach, Laurent E. Calvet, Paolo Sodini
From: Stockholm School of Economics – EDHEC Business School How the Top 1{5e7f07e14add20b2e04f4edb85a447d3cd8121fc27b809645e9fed603c22cc5c} Keeps Getting Richer
By: Noah Smith – Stony Brook University
Tech entrepreneurs in the US are half heartedly liberal
Broockman and al find that in the US the business elite in the tech industry is predisposed towards racial tolerance, liberal redistribution and globalistic policies but are fervently opposed to regulation. With their political power growing how will their preferences affect inequality in the US?

Wealthy Elites’ Policy Preferences and Economic Inequality: The Case of Technology Entrepreneurs
Authors: David Broockman, Greg F. Ferenstein, Neil Malhotra
From: Stanford University