Bill Gates wants ultra-wealthy individuals to pay more tax — and now a growing chorus of billionaires agree. Gates doubled down on his calls to tax the rich in a panel at the World Economic Forum in Davos this week. It seems others agree, as more than 250 ultra-wealthy people signed an open letter calling for global leaders to impose a wealth tax. "Our request is simple: we ask you to tax us, the very richest in society," the letter says. The open letter's signatories includes Abigail Disney , whose grandfather Roy O. Disney cofounded The Walt Disney Company.

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Persons: Bill Gates, Gates, Abigail Disney, Roy O, Disney, Brian Cox, Valerie Rockefeller, Rockefeller Organizations: Service, Business, Microsoft, Economic, Walt Disney Company, Patriotic Millionaires, Patriotic Millionaires UK, TaxMeNow, Humanity, Oxfam, Boeing, Disney Locations: Davos, California, New York