Stephen Schwarzman, chairman and chief executive officer of Blackstone Group LP, listens during a Bloomberg Television interview at the Waldorf Astoria Hotel in New York, U.S., on Friday, Sept. 28, 2012. Blackstone Group LP, the world’s biggest buyout firm, raised as much as $960 million for its third closed-end fund investing in non-investment grade corporate debt. Photographer: Victor J. Blue/Bloomberg via Getty Images