Value of $100 in 1920, adjusted to 1946

What happened to prices between 1920 and 1946

Between 1920 and 1946, the Consumer Price Index went from 20 to 19.5. Cumulatively, prices declined 2.5%, which works out to an average of -0.10% per year. Put differently, a dollar in 1920 bought what $1.03 buys in 1946.

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: 1946

Consumer prices rose 8.3% in 1946, up sharply from 1945’s 2.3% and the sharpest increase since 1942, as wartime price controls finally came apart. Congress let the Office of Price Administration’s authority lapse at the end of June, reinstated a weaker version soon after, then wound the whole system down through the rest of the year, releasing years of pent-up demand into the price level almost at once. Meat was the clearest casualty of the fight over decontrol: farmers withheld livestock rather than sell at capped prices, producing severe shortages that spring and summer until ceilings on meat were lifted that October, after which supplies reappeared almost overnight. Labor cashed in its own wartime restraint the same year. An estimated 4.6 million workers walked out at some point in 1946, hitting steel, coal, automakers, and the railroads in the largest strike wave in U.S. history, as unions pushed for wage gains to offset cost-of-living increases controls could no longer contain. Amid the turmoil, Congress made a less visible but lasting change to economic policy: the Employment Act of 1946, signed that February, committed the federal government to promoting maximum employment and created the Council of Economic Advisers. Consumer prices stood 97.0% above their 1913 level, nearly double where the index had started 33 years earlier. First-class postage held at 3 cents, and the minimum wage stayed at 40 cents an hour.

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