> boy, i wonder if these researchers maybe did more research than casually glancing at at top 10 list on the internet?
The "researchers" were the Union Bank of Switzerland. "UBS manages the largest amount of private wealth in the world, counting approximately half of the world's billionaires among its clients." https://en.wikipedia.org/wiki/UBS
The "researchers" were the Union Bank of Switzerland. "UBS manages the largest amount of private wealth in the world, counting approximately half of the world's billionaires among its clients." https://en.wikipedia.org/wiki/UBS