Value of $100 in 1939, adjusted to 1949

What happened to prices between 1939 and 1949

Between 1939 and 1949, the Consumer Price Index went from 13.9 to 23.8. Cumulatively, prices increased 71.2%, which works out to an average of 5.53% per year. Put differently, a dollar in 1939 bought what $0.58 buys in 1949.

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: 1949

Consumer prices fell 1.2% in 1949, down from 1948’s 8.1% gain and the first annual decline since 1939, the first real break in a decade otherwise defined by wartime and postwar inflation. A mild recession drove the drop: the National Bureau of Economic Research dates a downturn from November 1948 to October 1949, as businesses worked off inventories built up during the postwar buying boom and price pressure finally eased. The Cold War hardened around the same time. On April 4, the United States, Canada, and ten Western European nations signed the North Atlantic Treaty, committing to treat an attack on one member as an attack on all and formalizing the Western alliance against Soviet expansion. That August 29, the Soviet Union tested its first atomic bomb, ending the American nuclear monopoly just four years after Hiroshima and Nagasaki and setting off an arms race that would run for decades. Congress closed out the decade’s wage policy that October, passing the Fair Labor Standards Amendments of 1949 to raise the federal minimum wage to 75 cents an hour effective the following January, nearly double the 40 cents that had held since 1945. The decade closed with consumer prices 140.4% above their 1913 level, up 70% since 1940 alone even after 1949’s decline. First-class postage held at 3 cents.

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