Big data. It’s a term we hear frequently these days. But what exactly is “big data?” Is it a force for good, or a way for companies and governments to keep better track of us? In this clip from The Economist’s Ideas Economy events series, we ask leading experts what they think of the rise of big data.
Daily chart: Europe’s mental health. Over 38% of all Europeans, or 165m people, suffered from a mental disorder in 2010, according to a new study published this week. The most common condition is depression.