最新报道:Fifteen years after its launch, only 9 of 256 signatories to Bill Gates and Warren Buffett's Giving Pledge have donated half their wealth, with collective U.S. billionaire wealth growing 283% since 2010. While Chuck Feeney stands out as the sole signer to fully donate his fortune during his lifetime, most pledged funds remain in private foundations. A new report urges higher foundation payout rates, tax reforms, and transparency to prevent misuse of philanthropic structures. Critics argue billionaire foundations consolidate power through slow disbursements and favorable tax policies.