大象传媒

The US economy "all but stagnated" in the first three months of the year, growing at an annual rate of just 0.2%. We talk to Benjamin Friedman, an economist at Harvard University. Technology journalist Rupert Goodwins explains how one tweet may have cost Twitter's shareholders almost $8bn. And 大象传媒 business correspondent Theo Leggett tells the story of the British trader accused of helping to trigger Wall Street's "Flash Crash" in 2010.