Jamie Dimon, the most powerful banker in the world: ‘I know Europe doesn’t see the US as a friend, but it is’

The chairman and chief executive officer of JPMorgan cautions that stock markets are trading at elevated valuations amid a backdrop of multiple risks. ‘No one saw the 1974 crisis, the 1987 crash or the housing bubble, but you must be prepared,’ he says in an exclusive interview with EL PAÍS