If you're a wine drinker, you've probably noticed that screw caps are no longer considered the closure just for cheap vino. Increasingly, bottles of very good wines are unscrewed, rather than uncorked.
The income gap is growing dramatically in China and the rich are getting exponentially richer â€” the richest 10 percent of China's population are more than three times wealthier than the official figures.
Much of that undeclared wealth is what Chinese people call "gray income," including proceeds from corruption and other ethically "gray" areas of the economy.
Living on the margins of the "gray economy" are people like migrant laborer Wang Haichuan. He rents a room far below street level in a dark, former air-raid shelter inhabited by other migrants.
At a recent sewing class held in Berlin at Mama Afrika, which helps immigrants adjust to life in Germany, most of the African and Middle Eastern students feign ignorance when founder Hadja Kaba asks them about female genital mutilation.
Turning to one young woman wearing a veil she asks, "Have you been cut?"
"Yes," the woman answers, holding up the cloth she is sewing.
Kaba tries again. "No, not the cloth â€” down there!"
The veiled woman shakes her head and turns back to her fabric.
The widening gap between the rich and poor in the U.S. has become a central touch point for economists, pundits and politicians across the U.S. New York City's newly sworn-in mayor, Bill deBlasio, was elected after campaigning against a city divided between the haves and have-nots. President Obama has called tackling inequality the defining challenge of our time, saying that growing inequality and a lack of upward mobility jeopardizes the American dream. But what, exactly, is income inequality?