Value of $100 in 1918, adjusted to 1968

What happened to prices between 1918 and 1968

Between 1918 and 1968, the Consumer Price Index went from 15.1 to 34.8. Cumulatively, prices increased 130.5%, which works out to an average of 1.68% per year. Put differently, a dollar in 1918 bought what $0.43 buys in 1968.

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: 1968

Consumer prices rose 4.2% in 1968, up sharply from 1967’s 3.1% and the fastest pace in 17 years, as Vietnam War spending and a tight labor market pushed inflation higher despite the Federal Reserve’s earlier tightening. The year was marked by political violence: Martin Luther King Jr. was assassinated on a motel balcony in Memphis on April 4, touching off rioting in more than 100 cities, and Robert F. Kennedy was shot in Los Angeles on June 5, moments after winning California’s Democratic presidential primary, and died the next day. Washington tried to answer the inflation problem directly that June 28, when Congress passed a 10% income tax surcharge, the Revenue and Expenditure Control Act, temporarily raising taxes and cutting spending to cool an economy overheated by war and Great Society outlays; prices kept accelerating anyway. The cost of living rose in smaller, more visible ways too: first-class postage climbed to 6 cents that January 7, and the minimum wage rose to $1.60 an hour that February 1, the final step of the increase Congress had set two years earlier. Consumer prices finished 1968 251.5% above their 1913 level.

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