WPP's Sorrell: Some Buy Big Data, We Make it

Nov. 20 (Bloomberg) -- WPP Group CEO Sir Martin Sorrell speaks with Bloomberg Television's Stephanie Ruhle at the Bloomberg Business Summit at the Art Institute of Chicago. (Source: Bloomberg)
How Migrants Built an Economy in Calais' Tent City
40:02 - Amid the hundreds of tents and makeshift shelters of Calais' sprawling migrant camp, a micro economy has emerged. Shops, restaurants and even a nightclub have sprung up, adding a shred of normality to a precarious, and often dangerous, existence. Bloomberg's Tom Mackenzie reports.
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