Investor Warren Buffett and Microsoft founder Bill Gates announced on Wednesday that they are asking hundreds of billionaire Americans to give away at least 50 percent of their wealth to charity.
Buffett, who made his fortune with insurance and investment company Berkshire Hathaway, Gates and his wife Melinda have held a series of dinners with rich Americans in the past year to urge them to make a philanthropic pledge.
They have named the campaign the Giving Pledge and are asking those who commit to giving away at least half their fortune during their lifetime or after their death to publicly state their intention with a letter explaining their decision.
Patty Stonesifer, a former chief executive of the Gates Foundation and now adviser to Gates and Buffett, said that four families had agreed to announce their pledge: real estate and construction billionaire Eli Broad, venture capitalist John Doerr, media entrepreneur Gerry Lenfest and former Cisco Systems Chairman John Morgridge.
The amount pledged by each family to philanthropy was not immediately available.
In a letter posted on the campaign's website, www.givingpledge.org, Buffett said he "couldn't be happier" with his 2006 decision to give away 99 percent of his wealth to the Bill & Melinda Gates Foundation and family charities.
"Now, Bill and Melinda Gates and I are asking hundreds of rich Americans to pledge at least 50 percent of their wealth to charity," Buffett, 79, said.
He said that so far about 20 percent of his Berkshire Hathaway shares, including shares given by his late wife Susan, had been distributed to charity and that he would continue to distribute annually 4 percent of the shares he retains.
"At the latest, the proceeds from all of my Berkshire shares will be expended for philanthropic purposes by 10 years after my estate is settled. Nothing will go to endowments; I want the money spent on current needs," Buffett wrote.
Gates was ranked the second richest man in the world by Forbes magazine this year with $53 billion, while Buffett came in at No. 3 with $47 billion. Forbes said the United States is home to 403 billionaires, the most in the world.
Bill and Melinda Gates have so far given more than $28 billion to their foundation. Since the foundation began in 1994 it has given away more than $22 billion for health improvements in poor countries and to improve access for Americans to opportunities they need to succeed in school and life.
The Giving Pledge will not accept any money, it is simply asking billionaires to make a moral commitment to give away their wealth to charity.
While the campaign is targeting billionaires, the Giving Pledge said it is "inspired by the example set by millions of Americans who give generously (and often at great personal sacrifice) to make the world a better place."
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