BERNANKE'S STORY

... [T]he proximate cause of the world depression was a structurally flawed and poorly managed international gold standard. ... For a variety of reasons, including a desire of the Federal Reserve to curb the US stock market boom, monetary policy in several major countries turned contractionary in the late 1920s—a contraction that was transmitted worldwide by the gold standard. What was initially a mild deflationary process began to snowball when the banking and currency crises of 1931 instigated an international "scramble for gold." Sterilization of gold inflows by surplus countries [the USA and France], substitution of gold for foreign exchange reserves, and runs on commercial banks all led to increases in the gold backing of money, and consequently to sharp unintended declines in national money supplies. Monetary contractions in turn were strongly associated with falling prices, output and employment. Effective international cooperation could in principle have permitted a worldwide monetary expansion despite gold standard constraints, but disputes over World War I reparations and war debts, and the insularity and inexperience of the Federal Reserve, among other factors, prevented this outcome. As a result, individual countries were able to escape the deflationary vortex only by unilaterally abandoning the gold standard and re-establishing domestic monetary stability, a process that dragged on in a halting and uncoordinated manner until France and the other Gold Bloc countries finally left gold in 1936. —Great Depression, B. Bernanke