Value of $100 in 1918, adjusted to 1946

What happened to prices between 1918 and 1946

Between 1918 and 1946, the Consumer Price Index went from 15.1 to 19.5. Cumulatively, prices increased 29.1%, which works out to an average of 0.92% per year. Put differently, a dollar in 1918 bought what $0.77 buys in 1946.

1918 brought the steepest annual price increase the CPI had recorded: consumer prices rose 18.0% for the year, edging out 1917’s already sharp 17.4% as the economy stayed at full wartime mobilization for most of the year. A first-class stamp cost 3 cents, up from 2 cents the previous November under the War Revenue Act’s wartime tax increases. The war itself ended on November 11, when Germany signed an armistice with the Allied powers after more than four years of fighting in Europe, but the inflation built up over a year and a half of mobilization did not disappear along with the fighting. The bigger public health story that year was the influenza pandemic that reached the U.S. in a mild spring wave and then returned that fall in a far deadlier form, eventually killing roughly 675,000 Americans, more than the country’s combat losses in the war. It hit factories, docks, and shops alongside households, adding disruption to an economy already strained by wartime demand. Prices would keep climbing even after the armistice, into the postwar surge of 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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