The deflation of the 1930's was the mirror image of the wartime rise in the price level that had not been reversed in the 1920-21 recession. When countries go off the gold standard, gold falls in real value and the price level in gold countries rise. When countries go onto the gold standard, gold rises in real value and the price level falls. The appreciation of gold in the 1930's was the mirror image of the depreciation of gold in World War I. The dollar price level in 1934 was the same as the dollar price level in 1914. The deflation of the 1930's has to be seen, not as a unique "crisis of capitalism,"as the Marxists were prone to say, but as a continuation of a pattern that had appeared with considerable predictability before—whenever countries shift onto or return to a monetary standard. The deflation in the 1930's has its precedents in the 1780's, the 1820's and the 1870's.
What verdict can be passed on this third of the century? One is that the Federal Reserve System was fatally guilt of inconsistency at critical times. It held onto the gold standard between 1914 and 1921 when gold had become unstable. It shifted over to a policy of price stability in the 1920's that was successful. But it shifted back to the gold standard at the worst time imaginable, when gold had again become unstable. The unfortunate fact was that the least experienced of the important central banks—the new boy on the block—had the awesome power to make or break the system by itself.
The European economies were by no means blameless in this episode. They were the countries that changed the status quo and moved onto the gold standard without weighing the consequences. They failed to heed the lessons of history—that a concerted movement off, or onto, any metallic standard brings in its wake, respectively, inflation or deflation. After a great war, in which inflation has occurred in the monetary leader and gold has become correspondingly undervalued, a return to the gold standard is only consistent with price stability if the price of gold is increased. Failing that possibility, countries would have fared better had they heeded Keynes' advice to sacrifice the benefits of fixed exchange rates under the gold standard and instead stabilize commodity prices rather than the price of gold.
Had the price of gold been raised in the late 1920's, or, alternatively, had the major central banks pursued policies of price stability instead of adhering to the gold standard, there would have been no Great Depression, no Nazi revolution and no World War II.