Since the financial crisis, it has become commonplace to argue that banks should be run as utilities, not casinos. At least in terms of their financial performance, that seems to be happening. In 2006, the eight American banks that regulators have since labelled "globally systemically important" generated casino-like profits, with returns on equity of 30% on average, according to Oliver Wyman, a consultancy. They are currently managing less than 11%, and there is worse to come: the Federal Reserve recently announced plans to oblige them to raise extra capital. By one calculation that would reduce their return on equity to little over 8%, other things being equal-a lower return than America's water companies make.
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