Fair trade: How unjust is the global economy?

Watch video 26:01

Eight billionaires own the same wealth as the 3.6 billion people who make up the poorest half of humanity. How can that be just? Who is to blame? Is change possible? Our guests this week: Mekonnen Mesghena (Heinrich Böll Foundation); Rajshri Jayaraman (ESMT), Alan Posener (Die Welt)