Number of billionaires globally could reach 4,000 in next five years

There are now 3,110 billionaires but analysis shows deep structural acceleration' in wealth creation around world

The number of billionaires in the world could reach nearly 4,000 by 2031, figures suggest, as the super-rich accumulate wealth at an accelerating rate.

There are now 3,110 billionaires globally, according to analysis by the estate agent Knight Frank. This is forecast to rise by 25% over the next five years, taking the total to 3,915.