A staggering new poll has revealed that support for higher taxes on wealth is popular with dollar millionaires from across G20 countries. It comes as 260 millionaires and billionaires have signed a new letter demanding world leaders increase their taxes, to coincide with the World Economic Forum in Davos, Switzerland. The polling is part of the “Proud to Pay More” report, published alongside the letter, which profiles some of the world’s wealthiest people on why they support higher taxes on themselves.