The debate about the causes of the financial crisis and the great recession will continue for many years, and the facts and analysis that Robert Hetzel put forth in his new book The Great Recession: Market Failure or Policy Failure? should now be part of that debate. As I said in my comments for Cambridge University Press, “Hetzel applies his experience as a central banker and his expertise as a monetary economist to make a compelling case for rules rather than discretion, showing that 'monetary disorder' rather than a fundamental 'market disorder' is the cause of poor macroeconomic performance. At the same time, he acknowledges and discusses disagreements among those who argue for rules rather than discretion.”

One area of disagreement among those who agree that deviations from sensible policy rules were a cause of the deep crisis is how much emphasis to place on the “too low for too long” period around 2003-2005—which, as I wrote in Getting Off Track, helped create an excessive boom, higher inflation, a risk-taking search for yield, and the ultimate bust—compared with the “too tight” period when interest rates got too high in 2007 and 2008 and thereby worsened the decline in GDP growth and the recession.

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