Dr Anderson and his team have, of course, gone through painstaking efforts to rule out conventional physical explanations and systematic errors.

ECONOMIST: Physics

This second rule challenges the conventional wisdom that the safest diversification is into an industry closely related to your own: after several years and a great deal of research, Mr Broad built his second Fortune 500 firm in an entirely unrelated business: financial products for retirement.

ECONOMIST: Uncommonly unreasonable

Under existing rules, traders have to confirm that the shares are at least available for a broker or dealer to borrow (the locate rule), and they are supposed to conform to the conventional three-day window to deliver shares to the trader on the other side of the transaction.

FORBES: Naked Short-Selling