Billionaire investor Elon Musk has always done things his own way, from designing space rockets to manufacturing electric cars.

Academics can be dismissive of the concerns of the popular media. But when it comes to the growth of the super-rich, the tabloids may have gotten it right.

U2 singer Bono is set to make a small profit from the sale of smartphone-maker Palm to Hewlett-Packard as part of a €900 million deal but analysts say he won’t be happy with the return.