Value of $100 in 1920, adjusted to 1956

What happened to prices between 1920 and 1956

Between 1920 and 1956, the Consumer Price Index went from 20 to 27.2. Cumulatively, prices increased 36.0%, which works out to an average of 0.86% per year. Put differently, a dollar in 1920 bought what $0.74 buys in 1956.

1920 was the last year of the inflation that had built since the war began: consumer prices rose 15.6% for the year, leaving the CPI more than double its 1913 starting level after seven straight years of increases. The boom behind those increases turned to bust before the year was over. The Federal Reserve, worried about speculation, pushed its discount rate to a record 7% that spring, and wholesale prices, which had led the wartime runup, began collapsing within months. The National Bureau of Economic Research dates the resulting downturn from January 1920 to July 1921, one of the shortest but steepest contractions in U.S. history, and consumer prices followed into outright decline, falling 10.5% in 1921. Two constitutional changes reshaped the country that year, too. The 18th Amendment’s ban on alcohol took legal effect January 17, enforced under the Volstead Act Congress had passed the previous October. Then, on August 18, Tennessee’s ratification of the 19th Amendment secured women’s right to vote nationwide, and women cast ballots in a presidential election for the first time that November, when Warren Harding won on a promise to return the country to “normalcy” after a decade of war, pandemic, and rising prices. First-class postage held at 2 cents, unchanged since mid-1919.

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The destination year: 1956

Consumer prices rose 1.5% in 1956, a return to mild inflation after they had fallen 0.4% in 1955, the only annual decline of the decade. The two years sat in the calmest stretch of the postwar index, a lull between the Korean War price surge earlier in the 1950s and the acceleration that would return in the 1970s. Congress had already raised the wage floor into that calm: the Fair Labor Standards Amendments of 1955, signed the previous August, took effect March 1 and lifted the federal minimum wage from 75 cents to $1 an hour, the first increase since 1950. Eisenhower signed a longer-lasting commitment on June 29, the Federal-Aid Highway Act, funding 41,000 miles of controlled-access highway at 90% federal cost to build the Interstate System, the largest public-works program the country had undertaken. He won a second term that November, carrying 41 states and about 57% of the popular vote in a rematch against Adlai Stevenson. Abroad, the Suez Crisis broke the calm on the supply side: Egypt nationalized the canal on July 26, and after Israel invaded the Sinai on October 29 with British and French forces following, the canal’s closure and damaged pipelines squeezed oil shipments to Western Europe for months. Consumer prices stood 174.7% above their 1913 level by 1956, up 94% since 1940 alone, even after a decade that had barely moved the index. First-class postage held at 3 cents, unchanged since 1932.

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