LIBOR at Sunset 2012, Frauds come to Light as Actors become Regulators

LONDON — It was big news when the Barclays chairman, Marcus Agius, resigned Monday over his bank’s role in the Libor rate-fixing scandal. Less noticed was his other resignation that same day.

Mr. Agius also quit as chairman of the British Bankers’ Association, or B.B.A., the powerful trade group that, among other things, oversees Libor.

Libor, short for the London interbank offered rate, is the interest rate that affects trillions of dollars’ worth of corporate and consumer loans each year. It is supposed to be a neutral figure that reflects how much it costs a bank to borrow money. But as Barclays has admitted, and other big banks may soon be forced to acknowledge, Libor has been manipulated — either to create a false impression of a bank’s health or to help bank traders game the financial markets.

However shocking the behavior by Barclays and possibly other banks might have been, the public, which has to pay interest based on rates set by Libor, is likely to be just as startled to learn that a vital financial benchmark is supervised not by government officials but by the bankers’ own trade association.

If there is one thing that the escalating Libor scandal has established, it is that bankers have a hard time regulating bankers — whether it be Barclays officials who did not stop employees from submitting spurious Libor rates or the committee within the bankers’ association that ultimately was unable to detect industry wrongdoing.

“The B.B.A. represents the interests of the big banks,” said Andrew Hilton, the director of the Center for the Study of Financial Innovation, a London-based research group that looks at financial issues. “It does not represent the interests of borrowers or the financial system at large.”

Barclays did not make Mr. Agius, who is leading the executive committee until a new chief executive is appointed, available for comment.

In the early days of Libor, starting in the late 1960s and into the 1980s, the fact that the rate banks used to borrow money was set and governed by a small group of like-minded bankers based in London was not seen as a problem. In fact, according to Minos A. Zombanakis, a former banker at Manufacturers Hanover who says he made the very first loan based on Libor by inventing the product on the fly, it was a sense of responsibility and trust between banks that underpinned the rate’s success.

Mr. Zombanakis, who is 85 years old and retired in his home country of Greece, recalls that first Libor loan — $80 million extended by a group of banks to Iran — as if it were yesterday.