Regulators, Risk and Roubini

Conn Carroll / March 23, 2009

Via Greg Mankiw, Bentley University professor Scott Sumner writes on efficient-markets hypothesis (EMH):

So the anti-EMH argument for regulation must be based on the following: bankers are irrational and make lots of foolish loans. Regulators are rational and can see that these loans are too risky, and can protect bankers from hurting themselves. At a theoretical level this doesn’t even pass the laugh test. But what happened in practice? What position did the “regulators” take in this crisis? First we need to define “regulators,” who are much more than just the low-paid Federal bureaucrats that oversee the banking industry. Regulators are the watchmen, those who watch the watchmen, and those who watch those who watch the watchmen. In other words: (more…)