Given the recent (official) announcement that the U.S. has been in recession since December 2007, I decided to look at the record of business cycles compiled by the National Bureau of Economic Research. The following graphs depict the length of expansions and contractions (and the trends in both), before and since the creation of the Federal Reserve System in 1913.
Source: “Business Cycle Expansions and Contractions,” National Bureau of Economic Research.
It seems that the creation of the Fed might have had a stabilizing effect on business cycles. (How much of an effect is impossible to tell, given the many other variables at work.)
But…the graphs don’t depict the relative severity of the various contractions. It is worth noting that the worst of them all — the Great Depression — occurred after the creation of the Fed and, in part, because of actions taken by the Fed. (A note to the history-challenged: The Great Depression began in September 1929 and ended only because of America’s entry into World War II.)