Causes of the Great Depression
In their 1963 book "A Monetary History of the United States, 1867–1960", Milton Friedman and Anna Schwartz laid out their case for a different explanation of the Great Depression. Essentially, the Great Depression, in their view, was caused by the fall of the money supply. Friedman and Schwartz write: "From the cyclical peak in August 1929 to a cyclical trough in March 1933, the stock of money fell by over a third." The result was what Friedman and Schwartz called "The Great Contraction" — a period of falling income, prices, and employment caused by the choking effects of a restricted money supply. Friedman and Schwartz argue that people wanted to hold more money than the Federal Reserve was supplying. As a result, people hoarded money by consuming less. This caused a contraction in employment and production since prices were not flexible enough to immediately fall. The Fed's failure was in not realizing what was happening and not taking corrective action. In a speech honoring Friedman and Schwartz, Ben Bernanke stated:
Causes of the Great Depression
The monetary explanation has two weaknesses. First, it is not able to explain why the demand for money was falling more rapidly than the supply during the initial downturn in 1930–31. Second, it is not able to explain why in March 1933 a recovery took place although short term interest rates remained close to zero and the Money supply was still falling. These questions are addressed by modern explanations that build on the monetary explanation of Milton Friedman and Anna Schwartz but add non-monetary explanations.