Greg Mankiw in today's NY Times. The key point:
Whatever we do, let’s not be overoptimistic about how successful improved oversight will be. The financial system is diverse and vastly complicated. Government regulators will always be outnumbered and underpaid compared with those whose interest it is to circumvent the regulations. Legislators will often be distracted by other priorities. To believe that the government will ever become a reliable watchdog would be a tragic mistake.
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