NEW YORK — Private equity company Blackstone Group LP (BX.N: Quote, Profile, Research, Stock Buzz) CEO Stephen Schwarzman said on Tuesday that up to 45 percent of the world’s wealth has been destroyed by the global credit crisis. ‘Between 40 and 45 percent of the world’s wealth has been destroyed in little less than a year and a half,’ Schwarzman told an audience at the Japan Society. ‘This is absolutely unprecedented in our lifetime.’ But the U.S. government is committed to the preservation of financial institutions, he said, and will do whatever it takes to restart the economy. U.S. Treasury Secretary Timothy Geithner plans to unfreeze credit markets through a new program that will combine public and private capital in a fund that would buy bank toxic assets of up to $1 trillion. ‘In all likelihood, that will have the private sector buy troubled assets to clean the banks out in terms of providing leverage … so that we can get more money back into the banking system,’ Schwarzman said. He expects the private sector to end up making ‘some good money doing that,’ but added there were complex issues on how to price toxic […]