Value of $100 in 1939, adjusted to 1947

What happened to prices between 1939 and 1947

Between 1939 and 1947, the Consumer Price Index went from 13.9 to 22.3. Cumulatively, prices increased 60.4%, which works out to an average of 6.09% per year. Put differently, a dollar in 1939 bought what $0.62 buys in 1947.

Consumer prices fell 1.4% in 1939, closing out a decade in which the CPI fell in six years and rose in four, leaving prices 18.7% below their 1929 level even after the mid-decade recovery. Measured against the start of the CPI’s modern record, prices still stood 40.4% above their 1913 level, a reminder that even a decade defined by deflation left the cost of living well above where it had been a generation earlier. The decade’s final months reset the economic picture entirely. Germany invaded Poland on September 1, and Britain and France declared war two days later; the United States stayed formally neutral under the Neutrality Acts, but Allied orders for war materiel began flowing to American factories almost immediately, a demand shock that would do more to end the Depression over the next few years than any peacetime relief program had managed. Domestic policy kept building on the New Deal’s framework, too: the federal minimum wage rose to 30 cents an hour that October, the second step in the schedule set by the 1938 Fair Labor Standards Act. Amid it all, the New York World’s Fair opened April 30 in Queens, themed “The World of Tomorrow” and drawing tens of millions of visitors with exhibits on television and other technologies promising a more prosperous decade than the one just ending. First-class postage held at 3 cents.

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The destination year: 1947

Consumer prices rose 14.4% in 1947, up from 1946’s 8.3% and the fastest annual increase since 1920, as the last of the wartime price controls disappeared and a year of strikes, wage catch-up, and lingering shortages hit consumers all at once. Congress answered the previous year’s strike wave that June, overriding President Truman’s veto to pass the Taft-Hartley Act, which banned secondary boycotts and the closed shop and let states adopt “right-to-work” laws curbing union power. American attention was also turning outward. In a June 5 speech at Harvard, Secretary of State George Marshall outlined a U.S.-funded plan to rebuild Western Europe’s economies, an effort that would become known as the Marshall Plan once Congress funded it the following year. The government reorganized itself for the confrontation with the Soviet Union that plan was partly designed to prevent: the National Security Act, signed July 26, created the Department of Defense, the Air Force as a separate service, the Central Intelligence Agency, and the National Security Council. Consumer prices stood 125.3% above their 1913 level and 30.4% above 1929’s pre-Depression peak, up from just 1.2% above it four years earlier. First-class postage held at 3 cents, and the minimum wage stayed at 40 cents an hour.

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