The lure of shadow banking

MARK CARNEY, governor of the Bank of England and head of the Financial Stability Board (FSB), an international watchdog set up to guard against future financial crises, was recently asked to identify the greatest danger to the world economy. He chose shadow banking in the emerging markets. Shadow banking certainly has the credentials to be a global bogeyman. It is huge, fast-growing in certain forms and little understood—a powerful tool for good but, if carelessly managed, potentially explosive.