Nicolas Berggruen, Founder and President of Berggruen Holdings
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Markus Karlsson talks to investor-turned-philantropist Nicolas Berggruen. He built a fortune on making clever investments and he's now set his sights on improving the way the world is run. He's also made a name for himself as the 'homeless billionaire' after he solds his homes and many of his worldly possessions back in 2000.