Bezos, 49, is one of the 19 new signatories to the Giving Pledge. (Photographer: Matthew Staver/Bloomberg)

MacKenzie Bezos Takes Warren Buffett’s Pledge to Donate Half Her Wealth

(Bloomberg) -- MacKenzie Bezos committed to giving away at least half of the $37 billion windfall she will receive in her upcoming divorce from Amazon.com Inc. founder Jeff Bezos.