More Than Half the World's Refugees Live in Urban…

More Than Half the World's Refugees Live in Urban Areas »

NAIROBI, Kenya—“Karibu,” Astar says, using one of Kenya’s official languages, Swahili, to welcome shoppers into her market stall. As customers pop in to look at the dress shirts and trousers on display, the 29-year-old shopkeeper quickly gets down to business.