NEF: What happened to the stock markets? (And does it matter?)

There’s been a panic in the stock markets in recent weeks after the Dow Jones plunged more than 1000 points on a single Monday in the first week of February. When the stock market plunges should we all be worried? Or does it only affect those wealthy enough to be trading? This week, Ayeisha Thomas-Smith is joined by Frank van Lerven, NEF economist, and Anna Isaac, economics correspondent at The Telegraph.