Thirty years after the 1987 Black Monday crash, when stocks tumbled 20% in one day, are markets looking dangerously overvalued yet again? Show more
Discover 11,128,835 listings and 278,157 playable programmes from the BBC
Thirty years after the 1987 Black Monday crash, when stocks tumbled 20% in one day, are markets looking dangerously overvalued yet again? Show more